Sayyiduna Ibn Umar (may Allah be pleased with them both) narrates from Sayyiduna Abu Ayyub al-Ansari (may Allah be pleased with him) that he said: Whenever I prayed behind your Prophet (peace and blessings be upon him), I heard him say when finishing the prayer: 'Allahumma ighfir li khatayaya wa dhunubi kullaha, an'ishni wa ahyini warzuqni wahdini li-salih al-a'mal wal-akhlaq, innahu la yahdi li-salihiha wa la yasrifu sayyi'aha illa anta' (O Allah! Forgive all my sins and my errors, grant me elevation, grant me (true) life, provide for me, and guide me to the best of deeds and character, for none but You can guide to the best of them, and none but You can turn away their evil).