(72) باب قِصَّةُ أَهْلِ نَجْرَانَ
Narrated Hudhaifa:
The people of Najran came to the Prophet (ﷺ) and said, "Send an honest man to us." The Prophet (ﷺ) said, "I will send to you an honest man who is really trustworthy." Everyone of the (Muslim) people hoped to be that one. The Prophet (ﷺ) then sent Abu Ubaida bin Al-Jarrah.
Reference: Sahih al-Bukhari 4381
In-book reference: Book 64, Hadith 404
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 59, Hadith 664