Ibn Shihab narrated about the invokers of curses and the practice of (li'an) based on the authority of Sahl bin Sa'd, of the tribe of Sa'ida. That a person from the Ansar came to Allah's Apostle ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌) and said: Allah's Messenger, tell me about the person who found a man with his wife. The remaining part of the hadith is the same (but) with this addition: They invoked curses in the mosque and I was present there. And he narrated in the hadith: He divorced her with three pronouncements before Allah's Messenger ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌) commanded him (to get separation). He separated from her in the presence of Allah's Apostle ( ‌صلی ‌اللہ ‌علیہ ‌وسلم ‌), whereupon he said: There is a separation between the invokers of curses.