Sayyiduna Khafaf bin Ima’ Ghifari (may Allah be pleased with him) says: The Messenger of Allah (peace and blessings be upon him) led us in the morning prayer while we were with him. When he raised his head from the last bowing, he invoked this curse: May Allah curse Lihyan, Ra’l, Dhakwan, and ‘Usayyah; they have disobeyed Allah and His Messenger. May Allah grant safety to Aslam, and may Allah forgive Ghifar. Then the Messenger of Allah (peace and blessings be upon him) fell into prostration. When he finished (the prayer), he said: O people! I did not say these words; rather, Allah, the Exalted, said them. In another narration, Khafaf said: For this reason, cursing the disbelievers was established.