7. Muhammad ibn Yahya has narrated from Ahmad ibn Muhammad ibn ‘Isa from Isma’il ibn Sahl from Hammad from Rib’i from Abu ‘Abdillah عليه السلام who has said the following: “Amir al-Mu’minin, Ali ibn abu Talib عليه السلام has said, ‘Regret for an evil deed leads one to stay away from it.’”