Anas reported that the hair of Allah's Messenger (may. peace be upon him) came upon his shoulders.
Sahih Muslim Book 43, Hadith 126
← Previous Hadith I asked Anas b. Malik: How was the hair of Allah's Messenger (ﷺ)? Thereupon he said: His hair was neither very curly nor very straight, and they hung over his shoulders and earlobes.

Sahih Muslim Book 43, Hadith 125 Next Hadith → Anas reported that the hair of Allah's Apostle (ﷺ) reached half of the earlobe.

Sahih Muslim Book 43, Hadith 127