Sayyiduna Abu Dharr Ghifari (may Allah be pleased with him) narrates from the Noble Prophet (peace and blessings be upon him) that Allah Almighty said: "O My servants! I have made oppression unlawful for Myself and I have made it unlawful among you as well, so do not oppress one another. O My servants! Indeed, you commit sins by day and by night, and I am the One who forgives sins, and I do not mind."
After this, the narrator mentioned a lengthy hadith, at the end of which he stated this point. Whenever the narrator named Abu Idris would narrate this hadith, he would kneel down on his knees.