Sunan Abi Dawud 4185
سنن أبي داود#4185Sahihحَدَّثَنَا مَخْلَدُ بْنُ خَالِدٍ، حَدَّثَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، عَنْ ثَابِتٍ، عَنْ أَنَسٍ، قَالَ كَانَ شَعْرُ رَسُولِ اللَّهِ صلى الله عليه وسلم إِلَى شَحْمَةِ أُذُنَيْهِ .
Narrated Anas ibn Malik: The hair of the Messenger of Allah (ﷺ) were up to the lobes of 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 ZaiIsnaad Sahih
In-book reference: 35:27