Sunan Abi Dawud 123
سنن أبي داود#123Sahihحَدَّثَنَا مَحْمُودُ بْنُ خَالِدٍ، وَهِشَامُ بْنُ خَالِدٍ، - الْمَعْنَى - قَالاَ حَدَّثَنَا الْوَلِيدُ، بِهَذَا الإِسْنَادِ قَالَ وَمَسَحَ بِأُذُنَيْهِ ظَاهِرِهِمَا وَبَاطِنِهِمَا . زَادَ هِشَامٌ وَأَدْخَلَ أَصَابِعَهُ فِي صِمَاخِ أُذُنَيْهِ .
Another version says:He wiped his ears inside and outside. Hisham adds: He inserted his fingers in the ear-holes
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 Lighairihi
Zubair Ali ZaiHasan
In-book reference: 1:123