Musannaf Ibn Abi Shayba 3:26

Abu Bakr narrated to us, he said: Ibn Fudayl and Abu Mu'awiyah narrated to us, from al-A'mash, from Ibrahim al-Taymi, from al-Harith ibn Suwayd, he said: Ibn Mas'ud said: "Indeed, among the most beloved speech to Allah is that a man says: 'Glory be to You, O Allah, and with Your praise, and blessed is Your name, and exalted is Your majesty, and there is no god other than You. My Lord, I have wronged myself, so forgive me, for indeed, no one forgives sins except You.'"