Sayyiduna Abu Huraira (may Allah be pleased with him) reports that the Noble Prophet (peace and blessings be upon him) said: "I seek forgiveness from Allah a hundred times every day, and I turn to Him in repentance."

Sayyiduna Hudhayfah (may Allah be pleased with him) says: I said, "O Messenger of Allah! My tongue has burned me." The Prophet (peace and blessings be upon him) said: "Where are you from seeking forgiveness? I, indeed, ask Allah for forgiveness one hundred times a day and turn to Him one hundred times a day."

It is narrated from Sayyiduna Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: "Rust settles upon hearts just as it does upon iron, and its cleansing is through seeking forgiveness (istighfar)."