Syedna Ali (may Allah be pleased with him) said to Syedna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) had prohibited temporary marriage (Nikah Mut'ah) and the meat of domesticated donkeys during the time of the Battle of Khaybar.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) ordered me to be present with him at the time of sacrifice, and to distribute the skins and coverings of those camels, as well as to distribute the meat. He also instructed that nothing from them should be given to the butcher as wages, and said that we used to give him his wages from our own side.

Different narrators report that once we asked Sayyiduna Ali (may Allah be pleased with him) what message the Prophet (peace and blessings be upon him) gave when he sent Sayyiduna Abu Bakr (may Allah be pleased with him) as the leader of the pilgrims. He replied that I was sent with four messages: First, that no one except Muslims will be able to enter Paradise; second, that from now on, no one will be allowed to perform Tawaf of the Ka'bah naked; third, that any person who has a treaty with the Prophet (peace and blessings be upon him), it will remain valid until its term ends; and fourth, after this year, the polytheists will not be able to perform Hajj with the Muslims.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) decreed that the payment of the deceased's debt will be carried out before the execution of the will, even though in the Qur'an the mention of the will comes before the debt. And that uterine brothers will be heirs, but consanguine brothers will not be heirs. (Note: Brothers sharing the same mother are called uterine, and brothers sharing the same father are called consanguine.)

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "It is not possible that I keep giving to you and leave the people of Suffa, whose stomachs have sunk in due to hunger."

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that he saw the Messenger of Allah (peace and blessings be upon him) performing Sa’i between Safa and Marwah at Mas’a, in such a state that his upper garment had slipped from his body and reached his knees.

Sayyiduna Ali (may Allah be pleased with him) narrates that when I used to come to the service of the Prophet (peace and blessings be upon him), if the Prophet (peace and blessings be upon him) was standing and performing prayer at that time, he would say "Subhan Allah"; this would be a sign that I was permitted to enter. And if the Prophet (peace and blessings be upon him) was not performing prayer at that time, he would simply grant permission (and there would be no need to say "Subhan Allah").

Sayyiduna Abu Juhaifah (may Allah be pleased with him) reports that once we asked Sayyiduna Ali (may Allah be pleased with him), "Did you receive anything from the presence of the Prophet (peace and blessings be upon him) besides the Qur'an?" He replied, "No, by the One Who split the grain and created living beings, except for the understanding, insight, and wisdom that Allah grants to a person regarding the understanding of the Qur'an, or that which is in this scroll, and nothing else." I asked, "What is in this scroll?" He replied, "The rulings of blood money, the issues of releasing captives, and that no Muslim should be killed in retaliation for a disbeliever."

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that once the Prophet (peace and blessings of Allah be upon him) sent me, Sayyiduna Zubair (may Allah be pleased with him), and Sayyiduna Miqdad (may Allah be pleased with him) to a certain place and said: "You people set out, when you reach Rawdat Khakh, there you will find a woman who will have a letter with her. Take that letter from her and return." So we set out, our horses were almost slipping from our hands, until we reached Rawdat Khakh. There, indeed, we found a woman. We said to her, "Hand over the letter you have." She said, "I have no letter." We said to her, "Either you hand over the letter yourself, or we will strip you naked." Compelled, she took out a letter from her hair braid and handed it over to us. We took that letter and presented it to the Prophet (peace and blessings of Allah be upon him). When the letter was opened, it was found to be from Hatib bin Abi Balta'ah to some polytheists of Makkah, in which news of one of the Prophet's (peace and blessings of Allah be upon him) decisions was conveyed. The Prophet (peace and blessings of Allah be upon him) asked him, "Hatib! What is this?" He replied, "O Messenger of Allah! Do not be hasty in my matter. I do not belong to the Quraysh, but I have joined them. All the emigrants with you have relatives in Makkah who protect their families. I thought that I have no blood relatives there, so I would do them a favor so that in return they would protect my relatives. I did not do this as a disbeliever, or as an apostate, or preferring disbelief after Islam." The Prophet (peace and blessings of Allah be upon him) said: "He has told you the truth." Sayyiduna Umar (may Allah be pleased with him), overcome with emotion, said: "Allow me to strike the neck of this hypocrite?" The Prophet (peace and blessings of Allah be upon him) said: "He participated in the Battle of Badr, and what do you know, perhaps Allah looked upon the people of Badr from the heavens and said: 'Do whatever you wish, I have forgiven you.'"

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) forbade me from three things. Now I do not know whether this prohibition was specifically for me or general for everyone. The Prophet (peace and blessings be upon him) forbade me from (wearing) silk, from (using) a red saddle-cloth, and from reciting the Qur'an during bowing (ruku‘).