Sunan Abi Dawud 894
سنن أبي داود#894Sahihحَدَّثَنَا ابْنُ الْمُثَنَّى، حَدَّثَنَا صَفْوَانُ بْنُ عِيسَى، حَدَّثَنَا مَعْمَرٌ، عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ، عَنْ أَبِي سَلَمَةَ، عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم رُئِيَ عَلَى جَبْهَتِهِ وَعَلَى أَرْنَبَتِهِ أَثَرُ طِينٍ مِنْ صَلاَةٍ صَلاَّهَا بِالنَّاسِ .
Abu sa’ld al-Khudri said:The mark of earth was seen on the forehead and nose of the Messenger of Allah (ﷺ) due to the prayer in which he led the people
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
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Bukhari (813) Sahih Muslim (1167)
In-book reference: 2:504