The 9th COmmandment states:
Exodus 20:16 "Thou shalt not bear false witness against thy neighbour."
How Allah and Mohammad (PBUH) Treated the 9th Commandment:
"The Prophet said, 'If I take an oath and later find something else better than that, then I do what is better and expiate my oath.'"
"Allah and His Messenger dissolve obligations."
"Allah has already sanctioned for you the dissolution of your vows."
"Allah's Apostle said, 'War is deceit.'"
"Surely the hypocrites strive to deceive Allah. He shall retaliate by deceiving them."
"Magic was worked on Allah's Apostle and he was bewitched so that he began to imagine doing things which in fact, he had not done."
"Umar said, 'Our best Qur'an reciter is Ubai. And in spite of this, we leave out some of his statements because Allah's Apostle himself said, "Whatever verse or revelation We abrogate or cause to be forgotten We bring a better one."
"In that situation the Believers were sorely tried and shaken as by a tremendous shaking. And behold! The Hypocrites and those in whose hearts is a disease said: 'Allah and His Messenger promised us nothing but delusion; they have promised only to deceive us."
"Say: Flight will not avail you if you flee from death, killing, or slaughter. In that case you will not be allowed to enjoy yourselves but a little while. Say, 'Who will screen you, saving you from Allah if he intends to harm and injure you?'"
"You have in (Muhammad) the Messenger of Allah a beautiful pattern of conduct for any one to follow."
"We have appointed nineteen angels to be the wardens of the Hell Fire. We made a stumbling-block for those who disbelieve and We have fixed their number as a trial for unbelievers in order that the people of the Book may arrive with certainty, and that no doubts may be left for the people of the Book, those in whose hearts is a disease. And for those to whom the Scripture Book has been given, and the believers, there should be no doubt. The unbelievers may say, 'What does the Lord intend by this?' The Lord will lead astray whomever He pleases, and He will guide whomever He pleases: and none can know the armies of your Lord except He, and this is no other than a warning to mankind."
"Each one of them wants to be given scrolls of revelation spread out! No! By no means! Nay, this is an admonishment. Let them keep it in remembrance! But they will not heed unless the Lord wants them to. He is the fountain of fear."
"I heard the Prophet say, 'Allah hates for you for asking too many questions.'"
"There surely is an oath for thinking man."
"We will make smooth for him the path to misery."
"Hajjaj said to the Apostle, 'I have money scattered among the Meccan merchants, so give me permission to go and get it.' Having got Muhammad's permission, he said, 'I must tell lies.' The Apostle said, 'Tell them.'"
"If you apprehend treachery from a people with whom you have a treaty, retaliate by breaking off relations with them."
"Do they not understand the Qur'an? Nay, on the hearts there are locks preventing them from understanding."
"By Allah, the black mass has spread. Abu Bakr said, 'There is not much honesty among people nowadays.'"
"Whomever Allah wants to deceive you cannot help. Allah does not want them to know the truth because he intends to disgrace them and then torture them."
"Believers! Do not ask questions about things which if made plain and declared to you, may vex you, causing you trouble."
"Some people before you did ask such questions, and on that account they lost their faith and became disbelievers."
"Muhammad informed Umar [the second Caliph], and he called the Prophet a liar."
"'Prophet, this group of Ansar have a grudge against you for what you did with the booty and how you divided it among you own people.' 'Ansar, what is this talk I hear from you? What is the grudge you harbor against me? Do you think ill of me? Did I not come to you when you were erring and needy, and then made rich by Allah?' 'You came to us discredited, when your message was rejected by the Quraysh, and we believed you. You were forsaken and deserted and we assisted you. You were a fugitive and we took you in, sheltering you. You were poor and in need, and we comforted you."
"Allah's Apostle said, 'Some eloquent speech is as effective as magic.'"
"When Muhammad brought a revelation from Allah canceling what Satan had cast on the tongue of His Prophet, the Quraysh said, 'Muhammad has repented of [reneged on] what he said concerning the position of our gods with Allah. He has altered [the bargain] and brought something else.' Those two phrases which Satan had cast on Muhammad's tongue of were in the mouth of every polytheist. The Messenger said, 'I have fabricated things against Allah and have imputed to Him words which He has not spoken.'"
"O my People! I fear a Day when there will be mutual wailing. No one shall defend you against Allah. Any whom Allah causes to err, there is no guide. That is how Allah leads the skeptic astray."
"Allah has sealed their hearts and their hearing, blinding them so that they will never find guidance. And that is because they have declared you a liar and they do not believe in what has come down from their Lord to you even though they believe in all that came down before you. For opposing you they will have an awful punishment."
"As for the disbelievers, it is the same whether you warn them or not; they will not believe. Allah has set a seal upon their hearts, upon their hearing, and a covering over their eyes. There is a great torment for them."
"They deceive Allah and those who believe, but they only deceive themselves, and realize (it) not! In their hearts is a disease; and Allah has increased their disease. Grievous is the painful doom they (incur) because they (lie)."
"This and surely; Allah weakens the deceitful plots of unbelieving infidels."
"Remember how the unbelievers plotted against you (Muhammad). They plotted, and Allah too had arranged a plot; but Allah is the best schemer."
"I am the best of plotters. I deceived them with My guile so that I delivered you from them."
"When the hypocrites and those in whose hearts is a disease said: 'The religion has deceived and misled them.'"
"If they try to deceive you, remember they have deceived Allah before."
"The Jews of the Qaynuqa replied, 'Muhammad, do you think that we are like your people? Do not be deluded by the fact that you met a people with no knowledge and you made good use of your opportunity.'"
"Muhammad bin Maslamah said, 'O Messenger, we shall have to tell lies.' 'Say what you like,' Muhammad replied. 'You are absolved, free to say whatever you must.'"
"Allah's Apostle said, 'Who is willing to kill Ka'b bin Ashraf who has hurt Allah and His Apostle?' Thereupon Muhammad bin Maslamah got up saying, 'O Allah's Apostle! Would you like me to kill him?' The Prophet said, 'Yes,' Maslamah said, 'Then allow me to say false things in order to deceive him.' The Prophet said, 'You may say such things.'"
"Moses said: 'O my people, why do you annoy and insult me, when you well know I am Allah's Messenger?' Then when they turned away, Allah caused them to be deceived."
"Allah's Apostle forbade the people to travel to a hostile country carrying copies of the Qur'an. [He said:] Unbelievers will never understand our signs and revelations."
"Allah increases their sickness. A tormented doom awaits the Jews. Allah said, 'They are mischief makers. They are fools. The Jews deny the truth and contradict what the Apostle has brought. I will mock them and let them continue to wander blindly.'"
"Allah's Apostle said, 'A man may seem as if he were practicing the deeds of Paradise while in fact he is from the people of Hell.'"
"Say, 'God leads whosoever He wills astray.'"
"One of the young men's fathers confronted Muhammad and said, 'You have robbed my son of his life by your deception and brought great sorrow to me.'"
"They have been deceived by the lies they have themselves fabricated; their religion has deceived them."
"Then Allah said, 'It is not for any prophet to deceive."
"By Muhammad's order we beguiled them."
"The Messenger and his Companions continued in the fear and distress that Allah has described in the Qur'an. Then Nu'aym came to the Prophet. 'I 've become a Muslim, but my tribe does not know of my Islam; so command me whatever you will.' Muhammad said, 'Make them abandon each other if you can so that they will leave us; for war is deception.'"
"'By Allah you lie,' one said to another. 'Liar yourself!' 'You are a disaffected person arguing on behalf of the diseased."
"When the Prophet wanted to perform the Umrah, the Quraysh stipulated that he could not preach (Islam). So Ali started writing a treaty. 'This is what Muhammad, Apostle of Allah, has agreed to.' The (Meccans) said, 'If we believed that you were the Apostle of Allah we would have followed you. So write, 'This is what Muhammad bin Abdallah has agreed to.' The Apostle could not write, so he asked Ali to erase the expression: 'Apostle of Allah.' On that Ali said, 'I will never erase it.' Muhammad said, 'Let me see the paper.' The Prophet erased the expression with his own hand."
I have provided no analysis... This should be easy for some people to see whether Mohammad (PBUH) respected the 9th Commandment