jabir said:
The prophet of Allahﷺ sent me to Banu al-Mustaliq. When I returned to him, he was praying on his camel. I talked to him; he made a sign to me with his hand like this. I again talked to him; he made a sign to me with his hand like this. I was hearing him reciting the Qur’an and he was making a sign with his head. When he finished his prayer, he said; what did you do about the mission for which I had sent you; nothing prevented me from talking to you except that I was praying.

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مُحَمَّدٍ النُّفَيْلِيُّ، حَدَّثَنَا زُهَيْرٌ، حَدَّثَنَا أَبُو الزُّبَيْرِ، عَنْ جَابِرٍ، قَالَ أَرْسَلَنِي نَبِيُّ اللَّهِ ﷺ إِلَى بَنِي الْمُصْطَلِقِ فَأَتَيْتُهُ وَهُوَ يُصَلِّي عَلَى بَعِيرِهِ فَكَلَّمْتُهُ فَقَالَ لِي بِيَدِهِ هَكَذَا ثُمَّ كَلَّمْتُهُ فَقَالَ لِي بِيَدِهِ هَكَذَا وَأَنَا أَسْمَعُهُ يَقْرَأُ وَيُومِئُ بِرَأْسِهِ فَلَمَّا فَرَغَ قَالَ " مَا فَعَلْتَ فِي الَّذِي أَرْسَلْتُكَ فَإِنَّهُ لَمْ يَمْنَعْنِي أَنْ أُكَلِّمَكَ إِلاَّ أَنِّي كُنْتُ أُصَلِّي " .