It is narrated from Hazrat Abu Saeed Khudri (may Allah be pleased with him) that once the Prophet (peace and blessings of Allah be upon him) was distributing something when Dhu al-Khuwaisira al-Tamimi came and said, "O Messenger of Allah (peace and blessings of Allah be upon him)! Be just." The Prophet (peace and blessings of Allah be upon him) said, "Wretched one! If I do not act justly, then who will?" Hazrat Umar (may Allah be pleased with him) said, "O Messenger of Allah (peace and blessings of Allah be upon him)! Allow me to strike his neck?" The Prophet (peace and blessings of Allah be upon him) said, "Leave him, he has some companions; you will consider your prayers insignificant compared to their prayers, and your fasts insignificant compared to their fasts, but they will go out of the religion as an arrow passes through the prey. A man takes his arrow, looks at its tip and sees nothing, then looks at its sinew and sees nothing, then looks at its shaft and sees nothing, then looks at its feathers and sees nothing. Among them will be a black man, on one of whose hands will be a mark like a woman's breast or like a chewed piece of flesh. Their emergence will be at the time of division among people, and regarding them this verse was revealed: 'Among them are those who criticize you concerning the (distribution of) charities.' Hazrat Abu Saeed (may Allah be pleased with him) says, 'I bear witness that I heard this hadith from the Prophet (peace and blessings of Allah be upon him), and I also bear witness that Hazrat Ali (may Allah be pleased with him) fought against these people, and I was with him, and a man was brought who had the same appearance as the Prophet (peace and blessings of Allah be upon him) had described.'"