Riyad as-Saliheen 1034
Mu'awiyah (May Allah be pleased with him) reported:
I heard the Messenger of Allah ﷺ saying: "The Mu'adhdhinun (callers to prayer) will have the longest necks on the Day of Resurrection."
[Muslim].
وعن معاوية رضي الله عنه قال: سمعت رسول الله ﷺ يقول:
"المؤذنون أطول الناس أعناقًا يوم القيامة" ((رواه مسلم)).
Classification
Sahih (Authentic)
References
Riyad as-Saliheen 1034
Riyad as-Saliheen Book of Virtues, Hadith 44