And Allah has said (in Surah An-Nahl) «ولا تتخذوا أيمانكم دخلا بينكم فتزل قدم بعد ثبوتها وتذوقوا السوء بما صددتم عن سبيل الله ولكم عذاب عظيم‏» : "And do not make your oaths a means of discord among yourselves, lest a foot should slip after being firmly planted, and you taste the punishment of the Fire for having hindered (men) from the path of Allah, and you will have a severe punishment." In this verse, the word «دخلا» means deceit and fraud. The meaning of «غمس» is to drown.

Narrated `Abdullah bin `Amr: The Prophet said, "The biggest sins are: To join others in worship with Allah; to be undutiful to one's parents; to kill somebody unlawfully; and to take an oath Al-Ghamus.

And the statement of Allah Almighty «ولا تجعلوا الله عرضة لأيمانكم أن تبروا وتتقوا وتصلحوا بين الناس والله سميع عليم‏» : "And do not make Allah, by your oaths, an obstacle to being righteous and fearing Allah and making peace among people. And Allah is Hearing and Knowing." And the saying of Allah Almighty (in Surah An-Nahl) «ولا تشتروا بعهد الله ثمنا قليلا إن ما عند الله هو خير لكم إن كنتم تعلمون‏» : "Do not exchange the covenant of Allah for a small price. Indeed, what is with Allah is better for you if you only knew." And in the same context He said «وأوفوا بعهد الله إذا عاهدتم ولا تنقضوا الأيمان بعد توكيدها وقد جعلتم الله عليكم كفيلا‏» : "And fulfill the covenant of Allah when you have taken it, and do not break oaths after their confirmation while you have made Allah, over you, a witness."

Narrated `Abdullah: Allah's Apostle said, "If somebody is ordered (by the ruler or the judge) to take an oath, and he takes a false oath in order to grab the property of a Muslim, then he will incur Allah's Wrath when he will meet Him." And Allah revealed in its confirmation: 'Verily! Those who purchase a small gain at the cost of Allah's covenants and their own oaths.' (3.77)

(The sub-narrator added:) Al-Ash'ath bin Qais entered, saying, "What did Abu `Abdur-Rahman narrate to you?" They said, "So-and-so," Al-Ash'ath said, "This verse was revealed in my connection. I had a well on the land of my cousin (and we had a dispute about it). I reported him to Allah 's Apostle who said (to me). "You should give evidence (i.e. witness) otherwise the oath of your opponent will render your claim invalid." I said, "Then he (my opponent) will take the oath, O Allah's Apostle." Allah's Apostle said, "Whoever is ordered (by the ruler or the judge) to give an oath, and he takes a false oath in order to grab the property of a Muslim, then he will incur Allah's Wrath when he meets Him on the Day of Resurrection."

Narrated Abu Musa: My companions sent me to the Prophet to ask him for some mounts. He said, "By Allah! I will not mount you on anything!" When I met him, he was in an angry mood, but when I met him (again), he said, "Tell your companions that Allah or Allah's Apostle will provide you with mounts."

Narrated Az-Zuhri: I heard `Urwa bin Az-Zubair, Sa`id bin Al-Musaiyab, 'Alqama bin Waqqas and 'Ubaidullah bin `Abdullah bin `Uqba relating from `Aisha, the wife of the Prophet the narration of the people (i.e. the liars) who spread the slander against her and they said what they said, and how Allah revealed her innocence. Each of them related to me a portion of that narration. (They said that `Aisha said), ''Then Allah revealed the ten Verses starting with:--'Verily! Those who spread the slander..' (24.11-21) All these verses were in proof of my innocence. Abu Bakr As-Siddiq who used to provide for Mistah some financial aid because of his relation to him, said, "By Allah, I will never give anything (in charity) to Mistah, after what he has said about `Aisha" Then Allah revealed:-- 'And let not those among you who are good and are wealthy swear not to give (any sort of help) to their kins men....' (24.22) On that, Abu Bakr said, "Yes, by Allah, I like that Allah should forgive me." and then resumed giving Mistah the aid he used to give him and said, "By Allah! I will never withhold it from him."

Narrated Abu Musa Al-Ash`ari: I went along with some men from the Ash-ariyin to Allah's Apostle and it happened that I met him while he was in an angry mood. We asked him to provide us with mounts, but he swore that he would not give us any. Later on he said, "By Allah, Allah willing, if ever I take an oath (to do something) and later on I find something else better than the first, then I do the better one and give expiation for the dissolution of my oath."

And the Prophet (peace be upon him) said that the best words are four: Subhan Allah, Alhamdulillah, La ilaha illallah, Allahu Akbar. And Abu Sufyan narrated that the Prophet (peace be upon him) wrote to Heraclius, "Come to a word that is equal between us and you." Mujahid said that «كلمة التقوى» is La ilaha illallah.

Narrated Al-Musaiyab: When the death of Abu Talib approached, Allah's Apostle came to him and said, "Say: La ilaha illallah, a word with which I will be able to defend you before Allah."