Ibn Hibban

Sayyiduna Abu Dharr Ghifari (may Allah be pleased with him) narrates: I asked, "O Messenger of Allah (peace and blessings be upon him)! Which deed is the most virtuous?" The Prophet (peace and blessings be upon him) said: "To have faith in Allah, and to strive in His path." The narrator states: I asked, "Which slave is the most virtuous?" The Prophet (peace and blessings be upon him) said: "The one who is best in the sight of his master and whose price is the highest." Sayyiduna Abu Dharr (may Allah be pleased with him) asked: "If I am not able to do that?" The Prophet (peace and blessings be upon him) said: "Then help someone who is working, or do some work for someone who is unable to do it." I asked: "If I am not able to do even that?" The Prophet (peace and blessings be upon him) said: "Then refrain from evil, for this will be a charity that you do for yourself."