From Sahih Bukhari (Hadith 5901):
Narrated Al-Bara':I did not see anybody in a red cloak looking more handsome than the Prophet. Narrated Malik: The hair of the Prophet (ﷺ) used to hang near his shoulders. Abu Ishaq said, "I heard him relate it more than once. He always laughed when he related it." Narrated Shu`ba: The hair of the Prophet (ﷺ) used to hang down to the earlobes
Reference: Bukhari 5901