Bulugh al-Maram 8 Marriage كتاب النكاح 128

وَفِي لَفْظٍ لِأَحْمَدَ : { طَلَّقَ أَبُو رُكَانَةَ اِمْرَأَتَهُ فِي مَجْلِسٍ وَاحِدٍ ثَلَاثًا , فَحَزِنَ عَلَيْهَا , فَقَالَ لَهُ رَسُولُ اَللَّهِ – صلى الله عليه وسلم -” فَإِنَّهَا وَاحِدَةٌ } وَفِي سَنَدِهَا اِبْنُ إِسْحَاقَ , وَفِيهِ مَقَالٌ 1 . 1 – ضعيف . رواه أحمد (165) وليست علته في ابن إسحاق ، وإنما له علة أخرى.

A wording by Ahmad has: Abu Rukana divorced his wife with three pronouncements, in one sitting. Then, he was grieved about her and Allah’s Messenger (صلى الله عليه وسلم) told him, “They (the three pronouncements) are reckoned as a single (utterance of divorce).” [The two Ahadith have Ibn Ishaq, in their chains of narrators, and his reliability has been questioned].