بُلُوغُ الْمَرَامِ
Bulugh al-Maram 1037
Marriage
وَأَصْلُ اَلْقِصَّةِ فِي اَلصَّحِيحِ مِنْ حَدِيثِ أَبِي أُسَيْدٍ اَلسَّاعِدِيِّ [1] .
The origin of the aforesaid story is found in the Sahih of al-Bukhari from Abu Usaid as-Sa'idi's Hadith.
Sunnah.com reference: Book 8, Hadith 85