197 – ʿAbd Allāh ibn Abī Badr narrated to me; Yazīd ibn Hārūn narrated to us; Hishām informed us, from al-Ḥasan, who said: “When a man performs a good deed, it becomes a light in his heart and a source of strength in his body. When a man commits an evil deed, it becomes darkness in his heart and weakness in his body.”