Hadith: When the Messenger of Allah (may Allah's peace and blessings be upon him) finished his prayer, he would seek Allah’s forgiveness three times; then say: O Allah, You are the One free from imperfections, and peace and perfection come from You. Blessed are You, the Owner of Majesty and Honor - Encyclopedia of Translated Prophetic Hadiths

Hadith: When the Messenger of Allah (may Allah's peace and blessings be upon him) finished his prayer, he would seek Allah’s forgiveness three times; then say: O Allah, You are the One free from imperfections, and peace and perfection come from You. Blessed are You, the Owner of Majesty and Honor - Encyclopedia of Translated Prophetic Hadiths