Musannaf Ibn Abi Shaybah 34262 — The virtues of Ali bin Abi Talib

Zayd bin Yuthay' (may Allah have mercy on him) said: News reached Sayyiduna Ali (may Allah be pleased with him) that some people were saying things about him. So he climbed the pulpit and said: "I adjure by oath that person among the Companions of Muhammad (peace and blessings be upon him) who heard anything from the Prophet (peace and blessings be upon him) about me, that he stand up." So six people stood up from his side, and six from the side of Sa'id bin Wahb (may Allah have mercy on him). Then all of them said: "We bear witness that the Messenger of Allah (peace and blessings be upon him) said: 'Whoever I am the friend of, Ali (may Allah be pleased with him) is his friend too. O Allah, be a friend to whoever befriends him, and be an enemy to whoever is hostile to him.'"