[Machine] The Messenger of Allah ﷺ sent me on an errand, so I went to him while he was praying. I greeted him and he responded with a gesture. Others have narrated it from Sufyan that he said in the hadith, "He did not respond to me verbally, but rather, he responded with a gesture." And with Allah is the Tawfiq (success), and these two narrations have been collected by Yazid ibn Ibrahim in his narration.  

بَعَثَنِي رَسُولُ اللهِ ﷺ فِي حَاجَةٍ فَأَتَيْتُهُ وَهُوَ يُصَلِّي فَسَلَّمْتُ عَلَيْهِ فَرَدَّ عَلَيَّ إِشَارَةً وَرَوَاهُ غَيْرُهُ عَنْ سُفْيَانَ فَقَالَ فِي الْحَدِيثِ لَمْ يَرُدَّ عَلَيَّ وَإِنَّمَا أَرَادَ لَمْ يَرُدَّ عَلَيَّ كَلَامًا وَرَدَّ عَلَيَّ إِشَارَةً وَبِاللهِ التَّوْفِيقُ وَقَدْ جَمَعَهُمَا يَزِيدُ بْنُ إِبْرَاهِيمَ فِي الرِّوَايَةِ