It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "No matter how much usury increases, its end is always towards decrease."

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Allah knows that whatever He has declared unlawful, there will be those among you who will look at it with curiosity. Beware! I am holding you back by your waist to save you from falling into the fire of Hell, and you are falling into it like moths or flies."

The previous hadith is also narrated through this second chain of transmission.

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that on the day of the Battle of Badr, we were three men riding on one camel each. In this way, Sayyiduna Abu Lubabah (may Allah be pleased with him) and Sayyiduna Ali (may Allah be pleased with him) were companions of the Prophet (peace and blessings be upon him). When it was the Prophet’s (peace and blessings be upon him) turn to walk on foot, both of them said, "We will walk in your place (you remain riding)." The Prophet (peace and blessings be upon him) said: "You two are not stronger than me, nor am I in less need of reward than you."

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that soon the reins of government will fall into the hands of some people who will delay the prayer from its appointed time, but you should perform the prayer at its proper time. Then he stood up and began to pray in between, and said: I have seen the Prophet (peace and blessings of Allah be upon him) doing likewise.

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that when this blessed verse was revealed: «﴿الَّذِينَ آمَنُوا وَلَمْ يَلْبِسُوا إِيمَانَهُمْ بِظُلْمٍ . . . . .﴾» [الأنعام: 82] "Those who believe and do not mix their belief with injustice..." this was very hard on the people and they said: O Messenger of Allah! Who among us has not wronged himself? The Prophet (peace and blessings be upon him) said: "It does not mean what you think it means. Have you not heard what the righteous servant (Luqman, peace be upon him) said to his son: 'My dear son! Do not associate anyone with Allah, for indeed associating partners with Allah is a great injustice.' In this verse, what is meant is only shirk (associating partners with Allah)."

Sayyiduna Ibn Mas'ud (may Allah be pleased with him) narrates that once the Prophet (peace and blessings be upon him) led a prayer. I do not remember whether there was some deficiency or excess in it. In any case, when he finished with salam, someone asked: "O Messenger of Allah! Has a new command regarding the prayer been revealed?" The Prophet (peace and blessings be upon him) said: "No, what happened?" The companions (may Allah be pleased with them) said: "You led the prayer in such and such a manner." Upon hearing this, the Prophet (peace and blessings be upon him) folded his legs and performed two prostrations of forgetfulness (sahw). Then, when he finished with salam, he said: "I am also a human being; just as you forget, I too can forget. So, if any of you ever has doubt in his prayer, he should carefully consider and act upon what he thinks is correct, and after finishing with salam, perform two prostrations of forgetfulness."

Alqamah narrates that once Sayyiduna Ibn Mas'ud (may Allah be pleased with him) came in the evening and, at the request of some people of Homs, recited Surah Yusuf before them. A man said, "By Allah! This Surah was not revealed in this way." Sayyiduna Ibn Mas'ud (may Allah be pleased with him) said, "Alas! By Allah, I recited this Surah in this very way before the Prophet (peace and blessings be upon him), and the Prophet (peace and blessings be upon him) praised me." Meanwhile, he went near that man and smelled alcohol from his mouth. He said, "You deny the truth and also drink alcohol? By Allah! I will not leave you without carrying out the prescribed punishment upon you." Thus, he carried out the punishment on him.

Abdur Rahman bin Yazid says that when Sayyiduna Uthman Ghani (may Allah be pleased with him) performed four rak'ahs in the plain of Mina, Sayyiduna Ibn Mas'ud (may Allah be pleased with him) said: I have performed two rak'ahs in Mina with the Prophet (peace and blessings of Allah be upon him), as well as with Sayyiduna Abu Bakr and Sayyiduna Umar (may Allah be pleased with them both). I wish that instead of these four rak'ahs, I would have a share in just two accepted rak'ahs.

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that we young men were once with the Prophet (peace and blessings be upon him), and we had nothing with us. The Prophet (peace and blessings be upon him) said to us: "O group of young men! Whoever among you has the ability to marry, he should get married, for marriage lowers the gaze and protects the private parts. And whoever is not able to marry should observe fasting, for fasting diminishes sexual desire."