Hadith 10:448
Abu Bakr narrated to us, he said: Abu Usamah narrated to us, from Ubaydullah, from Nafi’, from Ibn Umar, he said: The irrevocably divorced woman is three [pronouncements]; she is not lawful for him until she marries a husband other than him.
حدثنا أبو بكر قال حدثنا أبو أسامة عن عبيد الله عن نافع عن بن عمر قال البائن ثلاث لا تحل له حتى تنكح زوجا غيره