Narrated Anas:
We think that the Verse: 'Among the Believers are men who have been true to their covenant with Allah.' was revealed in favor of Anas bin An-Nadir. (ID)
USC-MSA web (English) reference: Vol. 6, Book 60, Hadith 306 (ID)
Arabic reference (ID): Book 65, Hadith 4783 (ID)