Sunan an-Nasa'i, Volume 4, Book 27, Hadith 3473 (DarusSalam) ⓘ
It was narrated from Masruq that 'Aishah said: "The Prophet gave his wives the choice and that was not a divorce."
أَخْبَرَنَا مُحَمَّدُ بْنُ إِبْرَاهِيمَ بْنِ صُدْرَانَ، عَنْ خَالِدِ بْنِ الْحَارِثِ، قَالَ حَدَّثَنَا أَشْعَثُ، - وَهُوَ ابْنُ عَبْدِ الْمَلِكِ - عَنْ عَاصِمٍ، عَنِ الشَّعْبِيِّ، عَنْ مَسْرُوقٍ، عَنْ عَائِشَةَ، قَالَتْ قَدْ خَيَّرَ النَّبِيُّ صلى الله عليه وسلم نِسَاءَهُ فَلَمْ يَكُنْ طَلاَقًا .
also referenced under: Hadith 3443 (Reference) & Book 27, Hadith 55 (In-Book)