Musannaf Ibn Abi Shayba 3:5275

Waki' narrated to us, [saying] Shu'bah and Mis'ar narrated to us, from Sa'id ibn Abi Burdah, from his father, who said: I heard the Messenger of Allah (may Allah bless him and grant him peace) saying: "I have not performed a prayer except that I hope it will be an expiation for what is before it."