Musannaf Ibn Abi Shayba 21:221

Abu Bakr ibn Ayyash narrated to us, from Asim, from Habib ibn Sahban, who said: I heard Umar while he was circumambulating the House, and he had no other constant prayer except these words: "Our Lord, give us in this world [that which is] good and in the Hereafter [that which is] good and protect us from the punishment of the Fire."