Shureid Thaqafi narrates: On one occasion, Sayyiduna Umar (may Allah be pleased with him) led the people in prayer while he was in a state of major ritual impurity (janabah). He repeated that prayer himself, but he did not order the people to repeat their prayer.

Muhammad bin Amr narrates: Once, Sayyiduna Uthman Ghani (may Allah be pleased with him) led the people in prayer while he was in a state of janabah (major ritual impurity). Later, when he saw a trace of a wet dream on his clothes, he said: "I have grown old. By Allah! I think I was in a state of janabah, but I did not realize it." Then Uthman repeated the prayer, but he did not order the people to repeat that prayer. The narrator named Abdur Rahman states: There is consensus on this matter that the person in a state of janabah will repeat the prayer, but the people will not repeat that prayer. To my knowledge, there is no difference of opinion regarding this.

Salim narrates from his father (Sayyiduna Abdullah bin Umar, may Allah be pleased with them both) regarding a person who leads people in prayer while in a state of impurity (without ablution). Sayyiduna Abdullah bin Umar, may Allah be pleased with them both, says: That person should repeat the prayer, but the people will not repeat that prayer.

Nafi' reports: On one occasion, Abdullah bin Umar (may Allah be pleased with them both) led his companions in prayer. Afterwards, he remembered that he had touched his private part (which invalidated his ablution), so Abdullah bin Umar (may Allah be pleased with them both) performed ablution again (and repeated the prayer), but he did not instruct those people to repeat their prayer. Ibn Mahdi reports: I asked Sufyan, "Are you aware of any narrator who has also reported that those people repeated the prayer?" He replied, "No, only a narrator named Hammad has reported this."