Musnad Abu Ya'la al-Mawsili 6:80

Abu Salih Muhammad ibn Yahya ibn Sa'id al-Qattan narrated to us, my father narrated to us, Musa al-Juhani narrated to me, from Mus'ab ibn Sa'd, from his father, that a Bedouin came to the Prophet, may Allah bless him and grant him peace, and said: "O Prophet of Allah, teach me words that I may say." He said: "Say: 'There is no god but Allah alone, He has no partner. Allah is the Greatest, [much] greatness; and praise be to Allah, much praise; and glory be to Allah, Lord of the worlds. There is no power and no strength except by Allah, the All-Mighty, the All-Wise.'" He said: "These are for my Lord, so what is for me?" He said: "Say: 'O Allah, forgive me, have mercy on me, guide me, provide for me, and grant me well-being.'"