Anas bin Malik reported,

The verse of hijab was revealed concerning Zaynab bint Jahsh. On that day, bread and meat were served at her wedding feast. She used to boast over the other wives of the Prophet ﷺ, saying, "Allah married me to him in the heavens."

Bukhari 7421

Sahih

حدثنا خلاد بن يحيى حدثنا عيسى بن طهمان قال سمعت

أنس بن مالك رضي الله عنه يقول

نزلت آية الحجاب في زينب بنت جحش وأطعم عليها يومئذ خبزا ولحما وكانت تفخر على نساء النبي ﷺ وكانت تقول إن الله أنكحني في السماء

البخاري 7421صحيح
Contents
Reference
Commentary
Ayat
Collection
Sahih Bukhari
Book
Tawhid
Chapter
And His Throne was upon the water", "And He is the Lord of the Mighty Throne
Numbering
Darussalam 7421
Bukhari 7421