وَحَدَّثَنِي عَنْ مَالِكٍ، عَنْ رَبِيعَةَ بْنِ أَبِي عَبْدِ الرَّحْمَنِ، أَنَّ الْقَاسِمَ بْنَ مُحَمَّدٍ، وَعُرْوَةَ بْنَ الزُّبَيْرِ، كَانَا يَقُولاَنِ فِي الرَّجُلِ يَكُونُ عِنْدَهُ أَرْبَعُ نِسْوَةٍ فَيُطَلِّقُ إِحْدَاهُنَّ الْبَتَّةَ أَنَّهُ يَتَزَوَّجُ إِنْ شَاءَ وَلاَ يَنْتَظِرُ أَنْ تَنْقَضِيَ عِدَّتُهَا ‏.‏

Yahya related to me from Malik from Rabia ibn Abi Abd ar-Rahmanthat al-Qasim ibn Muhammad and Urwa ibn az-Zubayr said that a man whohad four wives and then divorced one of them irrevocably, could marrystraightaway if he wished, and he did not have to wait for thecompletion of her idda. Translation Not Available

Book Ref: Muwatta Imam Malik Book 28 Hadith 1149
Web Ref:  Muwatta Imam Malik Book 28 Hadith 54