1665 — Abd Allah ibn Muhammad ibn Jafar narrated to us: Abd Allah ibn Ahmad ibn Thabit narrated to us. He said: Ahmad ibn Mansur narrated to us. He said: Abd al-Razzaq narrated to us. He said: Mamar informed us, from Yahya ibn Abi Kathir, from Zayd ibn Salam, from Abu Salam, from Abu Umamah, who said: The Messenger of Allah, peace and blessings be upon him, was asked about faith, and he replied: “Whoever is pleased by his good deed and saddened by his evil deed is a believer.”