Musannaf Ibn Abi Shayba 3:6330

Zayd ibn al-Hubab narrated to us, he said: Musa ibn Ubaydah narrated to me, from Qays ibn Abd al-Rahman ibn Abi Sa'sa'ah, from Sa'd ibn Ibrahim, from his father, from his grandfather Abd al-Rahman ibn Awf, that the Prophet, peace and blessings of Allah be upon him, said: "I prostrated in gratitude to my Lord for what He tested me with regarding my Ummah. Whoever sends one blessing upon me, ten good deeds are written for him, and ten evil deeds are erased from him."