"Abdullah bin Yasar the freed slave of Maimunah, and I came and entered upon Abu Juhaim bin Al-Harith bin Al-Sammah Al-Ansari. Abu Juhaim said: 'The Messenger of Allah ﷺ came back from the direction of Bi'r Al-jamal and was met by a man who greeted him with Salam, but the Messenger of Allah ﷺ did not return the greeting until he turned to the wall and wiped his face and hands, then he returned the greeting.'"
أَبُو جُهَيْمٍ أَقْبَلَ رَسُولُ اللَّهِ ﷺ مِنْ نَحْوِ بِئْرِ الْجَمَلِ وَلَقِيَهُ رَجُلٌ فَسَلَّمَ عَلَيْهِ فَلَمْ يَرُدَّ رَسُولُ اللَّهِ ﷺ حَتَّى أَقْبَلَ عَلَى الْجِدَارِ فَمَسَحَ بِوَجْهِهِ وَيَدَيْهِ ثُمَّ رَدَّ عَلَيْهِ السَّلاَمَ