أَخْبَرَنَا مُحَمَّدُ بْنُ عَبْدِ الأَعْلَى، قَالَ حَدَّثَنَا خَالِدٌ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ عَاصِمٍ، قَالَ قَالَ الشَّعْبِيُّ عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، قَالَتْ قَدْ خَيَّرَ رَسُولُ اللَّهِ صلى الله عليه وسلم نِسَاءَهُ فَلَمْ يَكُنْ طَلاَقًا ‏.‏

It was narrated that 'Aishah said: "The Messenger of Allah gave his wives the choice but that was not a divorce." Translation Not Available

Book Ref: Sunan An Nisai Book 27 Hadith 3442
Web Ref:  Sunan An Nisai Vol 4 Book 27 Hadith 3472