This hadith has been reported on the authority of Yahya b. Abu Kathir with the same chain of transmitters (with a slight variation of these words): I saw the Messenger of Allah ﷺ after he had completed (the prayer) and there was a trace of clay on his forehead and tip (of the nose).

وَحَدَّثَنَا عَبْدُ بْنُ حُمَيْدٍ، أَخْبَرَنَا عَبْدُ الرَّزَّاقِ، أَخْبَرَنَا مَعْمَرٌ، ح وَحَدَّثَنَا عَبْدُ اللَّهِ، بْنُ عَبْدِ الرَّحْمَنِ الدَّارِمِيُّ أَخْبَرَنَا أَبُو الْمُغِيرَةِ، حَدَّثَنَا الأَوْزَاعِيُّ، كِلاَهُمَا عَنْ يَحْيَى بْنِ أَبِي، كَثِيرٍ بِهَذَا الإِسْنَادِ . نَحْوَهُ وَفِي حَدِيثِهِمَا رَأَيْتُ رَسُولَ اللَّهِ ﷺ حِينَ انْصَرَفَ وَعَلَى جَبْهَتِهِ وَأَرْنَبَتِهِ أَثَرُ الطِّينِ .