Sayyiduna Ali (may Allah be pleased with him) said that discharge of madhiy (pre-seminal fluid) would occur frequently from my body. I felt shy to ask the Prophet (peace and blessings be upon him) about this issue myself because his daughter was married to me. So I asked Sayyiduna Miqdad (may Allah be pleased with him), and he asked the Prophet (peace and blessings be upon him) about this issue. The Prophet (peace and blessings be upon him) said, "This is the fluid of a man, and it occurs in every strong man. Therefore, when you see madhiy, wash your private part and perform ablution as you do for prayer."

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that he addressed his companion Hayyan and said: I am sending you for the same task for which the Prophet (peace and blessings be upon him) sent me; do not leave any grave without leveling it, and do not leave any image without erasing it.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "On land irrigated by rainwater, one-tenth (ushr) is obligatory, and on land irrigated by buckets or waterwheels, half of one-tenth is obligatory."

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) used to pray sixteen rak‘ahs at night apart from the obligatory prayers.

Asim bin Damrah says that once we asked Sayyiduna Ali (may Allah be pleased with him) how the Prophet (peace and blessings be upon him) used to offer voluntary prayers during the day. He replied: You do not have the strength to pray as he did. We said: Please tell us, we will try to act upon it as much as we are able and capable. He said: The Prophet (peace and blessings be upon him) used to offer sixteen rak‘ahs during the day apart from the obligatory prayers.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "I have exempted you from paying zakat on horses and slaves, therefore you must pay zakat on silver in any case, the nisab of which is that one dirham will be obligatory on every forty."

Sayyiduna Ali (may Allah be pleased with him) narrates that once the Prophet (peace and blessings be upon him) said to me: "Ali! I like for you what I like for myself, and I dislike for you what I dislike for myself. Do not recite the Noble Qur'an while in the state of bowing (ruku') or prostration (sajdah). Do not pray with your hair braided, for this is the way of Satan. Do not sit on your buttocks between the two prostrations. Do not play with pebbles during prayer. Do not spread your arms on the ground in prostration. Do not prompt the imam. Do not wear a gold ring. Do not wear silk clothing. And do not ride on a red saddlecloth."

Shuraih bin Hani says that I asked Sayyida Aisha Siddiqa (may Allah be pleased with her) a question regarding wiping over the socks, so she said: "You should ask this question to Sayyiduna Ali (may Allah be pleased with him), he has more knowledge about this issue because he used to accompany the Prophet (peace and blessings be upon him) during travels." So I asked Sayyiduna Ali (may Allah be pleased with him), and he said that the Prophet (peace and blessings be upon him) said: "The traveler is permitted to wipe over the socks for three days and three nights, and the resident for one day and one night."

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that on the day of the Battle of Khandaq, we performed the Asr prayer between Maghrib and Isha, upon which the Prophet (peace and blessings be upon him) said: "May Allah fill their houses and graves with fire, for they did not allow us to perform the Asr prayer until the sun had set."

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that once the Prophet (peace and blessings be upon him) said: "Jibreel came to me but did not enter the house." The Prophet (peace and blessings be upon him) asked him, "Why did you not come inside?" He replied, "We do not enter a house in which there is a picture or urine."