The Book of Divorce
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ عَاصِمٍ، عَنِ الشَّعْبِيِّ، عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم خَيَّرَ نِسَاءَهُ فَلَمْ يَكُنْ طَلاَقًا.A'isha reported that Allah's Messenger (ﷺ) gave option to his wives, but it was not a divorce
From Sahih Muslim, whose reports the scholars accept as authentic.