It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "The angels of mercy do not enter a house in which there is a person in a state of major ritual impurity (junub), or a picture, or a dog."

Nazzal bin Sabrah says that once, in his presence, Sayyiduna Ali (may Allah be pleased with him) performed the Zuhr prayer, then sat in the courtyard of the mosque to resolve people's issues. When the time for Asr prayer arrived, he took a handful of water and wiped his hands, arms, face, head, and feet with wet hands, then while standing, he drank that water and said that some people dislike drinking water while standing, whereas the Prophet (peace and blessings be upon him) also did as I have done. And the person who is not without ablution but already has ablution, this is the ablution of that person.

The previous hadith is also narrated through another chain of transmission.

Sayyiduna Ali (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) once sent him to Madinah Munawwarah and ordered that all the graves be leveled.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) sent an Ansari man and ordered him, "Level every grave and plaster every idol with clay." He said: "O Messenger of Allah! I do not wish to enter the houses of my people." Then the Prophet (peace and blessings be upon him) sent me. When I returned, he said, "Do not be among those who put people into trial or those who boast, but be only traders of goodness, for these are the people whom it is possible to surpass only through deeds."

The previous hadith is also narrated through another chain of transmission.

Abdu Khair, may Allah have mercy on him, says that once a chair was brought to Sayyiduna Ali, may Allah be pleased with him. I saw him sitting on it. Then a vessel was brought, and he washed his hands three times, then rinsed his mouth three times with the same water, put water into his nose, washed his face three times, washed both arms including the elbows three times, then again put his hands into the vessel and wiped his head once from front to back with both palms, and washed both feet including the ankles three times. Then he said that the Prophet, peace and blessings be upon him, used to perform ablution in this manner. Whoever wants to see the way of ablution of the Prophet, peace and blessings be upon him, this is it.

Abu Al-Wadi says that when Sayyiduna Ali (may Allah be pleased with him) was engaged in battle with the people of Nahrawan, I was present there. Sayyiduna Ali (may Allah be pleased with him) said: "Look for a man among the slain whose hand is defective and incomplete." The people searched for him among the corpses but did not find him, and the people began to say, "We cannot find him." Sayyiduna Ali (may Allah be pleased with him) said: "Go and search again. By Allah! I am not lying to you, nor has I been lied to." This happened several times, and each time Sayyiduna Ali (may Allah be pleased with him) sent the people again to search, and each time he swore an oath, saying, "I am not lying to you, nor has I been lied to." The last time, when the people searched, they found him lying under the corpses of the slain, buried in the dirt. They took him out and brought him before Sayyiduna Ali (may Allah be pleased with him). Abu Al-Wadi says: "It seems to me as if I am still seeing him before my eyes; he was an Abyssinian, on whose hand there was a mark like a woman's breast, and on that breast were hairs just like those on the tail of a wild mouse."

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) forbade the use of vessels made from pumpkin gourds and those made from wood.

It is narrated from Sayyiduna Ali (may Allah be pleased with him) that one day the Prophet (peace and blessings be upon him) was sitting waiting for a funeral. (In his blessed hand was a stick) with which he was scratching the ground. After a short while, he raised his head and said: "The abode of every one of you—whether Paradise or Hell—is present and determined in Allah's knowledge." The noble Companions (may Allah be pleased with them) asked: O Messenger of Allah! Should we not rely on this? He said: "Continue to do deeds, for each person will find it easy to do the deeds for which he was created." Then the Prophet (peace and blessings be upon him) recited this verse of the Qur'an: «﴿فَأَمَّا مَنْ أَعْطَى وَاتَّقَى، وَصَدَّقَ بِالْحُسْنَى، فَسَنُيَسِّرُهُ لِلْيُسْرَى﴾ [الليل: 5-7] » "So as for he who gives and fears Allah and believes in the best [reward] , We will ease him toward ease."