Sunan an-Nasa'i 5053
سنن النسائي#5053SahihIt was narrated that Anas said:"The hair of the Prophet [SAW] was wavy, neither curly nor straight, and (hung down) between his ears and his shoulders
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 48:14