Hadith 2920
Sayyiduna Sa’d (may Allah be pleased with him) narrates: It was asked from the Prophet (peace and blessings be upon him): Who faces the most severe trials? The Prophet (peace and blessings be upon him) said: The Prophets, then those closest to them (the righteous), and people are tested according to the strength of their religion. The one whose religion is strong, his trial is severe; the one whose religion is weak, his trial is also weak. A person remains in trial until he walks among the people and there is no sin upon him (i.e., due to the trial, his sins are forgiven).