It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that I never saw the Prophet (peace and blessings be upon him) performing a prayer at an improper time, except at Muzdalifah, where I saw him combining Maghrib and 'Isha, and on that day, performing Fajr earlier or later than its time.

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that once I was clinging to the covering of the Ka'bah when three men came. One of them was a Qurayshi and two were from the tribe of Thaqif who were his sons-in-law, or one was from Thaqif and two were Qurayshi. They had much fat on their bellies but very little understanding in their hearts. They began to speak quietly among themselves, which I could not hear. Then one of them said: "What do you think, does Allah hear our conversations?" The second said: "I think that when we speak loudly, He hears us, but when we do not raise our voices, He does not hear us." The third said: "If He can hear something, then He can hear everything." I mentioned this to the Prophet (peace and blessings be upon him), so Allah revealed this verse: «‏‏‏‏﴿وَمَا كُنْتُمْ تَسْتَتِرُونَ أَنْ يَشْهَدَ عَلَيْكُمْ سَمْعُكُمْ وَلَا أَبْصَارُكُمْ وَلَا جُلُودُكُمْ . . . . . وَذَلِكُمْ ظَنُّكُمُ الَّذِي ظَنَنْتُمْ بِرَبِّكُمْ أَرْدَاكُمْ فَأَصْبَحْتُمْ مِنَ الْخَاسِرِينَ﴾» ‏‏‏‏ [فصلت: 22-23] "And you conceal things so that your ears, eyes, and skins may not bear witness against you... This is your lowly assumption about your Lord, and you have become among the losers."

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) said: "Do not accumulate property, otherwise you will become engrossed in the world."

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Whoever seizes the wealth of a Muslim by swearing a false oath will meet Allah while He is angry with him." Upon hearing this, Sayyiduna Ash'ath (may Allah be pleased with him) said: "By Allah, this command was revealed concerning my case, the details of which are as follows: There was some land shared between me and a Jew. The Jew denied my share, so I brought him to the Prophet (peace and blessings be upon him). The Prophet (peace and blessings be upon him) said to me: 'Do you have any witnesses?' I replied: 'No.' The Prophet (peace and blessings be upon him) said to the Jew: 'Then you must swear an oath.' I said: 'O Messenger of Allah (peace and blessings be upon him)! He will take my property by swearing an oath.' Upon this, Allah revealed this verse up to the end: «﴿إِنَّ الَّذِينَ يَشْتَرُونَ بِعَهْدِ اللّٰهِ وَأَيْمَانِهِمْ ثَمَنًا قَلِيلًا . . . . .﴾» [آل عمران: 77] 'Indeed, those who exchange the covenant of Allah and their oaths for a small price . . . . . .'"

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) said: "On the Day of Resurrection, the most severe punishment will be for those who make images."

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) used to sleep lying on his back, to the extent that he would begin to snore, then he (peace and blessings be upon him) would wake up and lead the prayer without performing fresh ablution.

The previous hadith is also narrated through this chain.

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that once the Prophet (peace and blessings of Allah be upon him) went out to relieve himself and said to me: "Bring me something with which I can clean myself, but do not bring anything with changed color water or dung." Then I also brought water for ablution for the Prophet (peace and blessings of Allah be upon him), and the Prophet (peace and blessings of Allah be upon him) performed ablution and stood up to pray. In this prayer, when the Prophet (peace and blessings of Allah be upon him) bent his back for bowing (ruku'), he clasped his hands together and placed his hands between his thighs.

Sayyiduna Ibn Mas'ud (may Allah be pleased with him) narrates that once we went to the service of the Prophet (peace and blessings be upon him) and said that one of our companions is ill; can we treat him by cauterization? The Prophet (peace and blessings be upon him) remained silent and did not answer. We asked again, and the Prophet (peace and blessings be upon him) again remained silent, and after a while said: "Heat stones and apply them." It seemed as if the Prophet (peace and blessings be upon him) was displeased.

It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that I saw the Prophet (peace and blessings of Allah be upon him) saying the takbeer every time he bowed, rose, stood, and sat, and he would turn to the right and left in such a way while saying salam that the whiteness of his blessed cheeks would be visible. And I saw Sayyiduna Abu Bakr and Sayyiduna Umar (may Allah be pleased with them both) doing the same.