Sunan Abi Dawud 4186
سنن أبي داود#4186Sahihحَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا إِسْمَاعِيلُ، أَخْبَرَنَا حُمَيْدٌ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ كَانَ شَعْرُ رَسُولِ اللَّهِ صلى الله عليه وسلم إِلَى أَنْصَافِ أُذُنَيْهِ .
Narrated Anas bin Malik:The hair of Messenger of Allah (ﷺ) were halfway down his ears
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Muslim (2338)
In-book reference: 35:28