Musnad Abu Ya'la al-Mawsili 209:15

Ibrahim narrated to us, Hammad narrated to us, from Ali bin Zayd, from al-Hasan, from Umm Salamah, that the Messenger of Allah (may Allah bless him and grant him peace) used to say: "O Lord, forgive me, have mercy upon me, and guide me to the most upright path."