يَزِيدُ بْنُ هَارُونَ، أَنْبَأَنَا جَرِيرُ بْنُ حَازِمٍ، عَنْ قَتَادَةَ، عَنْ أَنَسٍ، قَالَ كَانَ شَعَرُ رَسُولِ اللَّهِ ـ صلى الله عليه وسلم ـ شَعَرًا رَجِلاً بَيْنَ أُذُنَيْهِ وَمَنْكِبَيْهِ.

It wasnarrated that Anas said: “The hair of the Messenger of Allah(PBUH)was wavy, and (hung down) between his ears and his shoulders.” Translation Not Available

Book Ref: Sunan Ibn Majah Book 32 Hadith 3634
Web Ref:  Sunan Ibn Majah Vol 4 Book 32 Hadith 3634