Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
abudawud:894 – Ibn al-Muthanná > Ṣafwān b. ʿĪsá > Maʿmar > Yaḥyá b. Abū Kathīr > Abū Salamah > Abū Saʿīd al-Khudrī

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.  

أبو داود:٨٩٤ – حَدَّثَنَا ابْنُ الْمُثَنَّى حَدَّثَنَا صَفْوَانُ بْنُ عِيسَى حَدَّثَنَا مَعْمَرٌ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنْ أَبِي سَلَمَةَ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ

أَنَّ رَسُولَ اللَّهِ ﷺ رُئِيَ عَلَى جَبْهَتِهِ وَعَلَى أَرْنَبَتِهِ أَثَرُ طِينٍ مِنْ صَلاَةٍ صَلاَّهَا بِالنَّاسِ  

See similar narrations below:

Collected by Abū Dāwūd
abudawud:911 – Muʾammal b. al-Faḍl > ʿĪsá > Maʿmar > Yaḥyá b. Abū Kathīr > Abū Salamah > Abū Saʿīd al-Khudrī

The mark of earth was seen on the forehead and nose of the Messenger of Allah ﷺ who had led the people I prayer. Abu Ali said: Abu Dawud did not recite this tradition when he recited his collection(of sunan) for the fourth time.  

أبو داود:٩١١ – حَدَّثَنَا مُؤَمَّلُ بْنُ الْفَضْلِ حَدَّثَنَا عِيسَى عَنْ مَعْمَرٍ عَنْ يَحْيَى بْنِ أَبِي كَثِيرٍ عَنْ أَبِي سَلَمَةَ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ

أَنَّ رَسُولَ اللَّهِ ﷺ رُئِيَ عَلَى جَبْهَتِهِ وَعَلَى أَرْنَبَتِهِ أَثَرُ طِينٍ مِنْ صَلاَةٍ صَلاَّهَا بِالنَّاسِ قَالَ أَبُو عَلِيٍّ هَذَا الْحَدِيثُ لَمْ يَقْرَأْهُ أَبُو دَاوُدَ فِي الْعَرْضَةِ الرَّابِعَةِ