It is narrated from Hazrat Abu Saeed Khudri (may Allah be pleased with him) that once some people complained about Hazrat Ali (may Allah be pleased with him) in the presence of the Prophet (peace and blessings be upon him). So the Prophet (peace and blessings be upon him) stood up to deliver a sermon among us, and I heard him say: "O people! Do not complain about Ali. By Allah! He is very strict in matters concerning Allah or in the way of Allah."