Chapter: It is not permissible for a woman who has been thrice-divorced to return to the one who divorced her until she marries another husband who has intercourse with her, then divorces her, and she completes the 'Iddah
`A'isha (Allah be pleased with her) reported that Rifa`a al Qurazi divorced his wife and afterwards `Abd al-Rahman b. al-Zubair married her. She came to Allah's Apostle ( صلی اللہ علیہ وسلم ) and said: Messenger of Allah, Rifa`a has divorced me by three pronouncements. (The rest of the hadith is the same.)
Authentic