(60) باب بَعْثُ أَبِي مُوسَى وَمُعَاذٍ إِلَى الْيَمَنِ قَبْلَ حَجَّةِ الْوَدَاعِ
Narrated `Amr bin Maimuin:
When Mu`adh arrived at Yemen, he led them (i.e. the people of Yemen) in the Fajr prayer wherein he recited: 'Allah took Abraham as a Khalil.' A man amongst the people said, "(How) glad the mother of Abraham is!" (In another narration) `Amr said, "The Prophet (ﷺ) sent Mu`adh to Yemen and he (led the people) in the Fajr prayer and recited: 'Allah took Abraham as a Khalil. A man behind him said, "(How) glad the mother of Abraham is!"
Reference: Sahih al-Bukhari 4348
In-book reference: Book 64, Hadith 375
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 59, Hadith 635