Sahih Muslim 1476
Sahih Muslim · Book 18: The Book of Divorce · Giving one's wife the choice does not count as a divorce, unless it is intended as such
وَحَدَّثَنَاهُ الْحَسَنُ بْنُ عِيسَى ، أَخْبَرَنَا ابْنُ الْمُبَارَكِ ، أَخْبَرَنَا عَاصِمٌ ، بِهَذَا الإِسْنَادِ . نَحْوَهُ .
The above hadith has likewise been narrated through another chain.