Narrated Sahl ibn Sa'd:

I never saw the Messenger of Allah ﷺ raising his hands and praying on the pulpit or otherwise. But I saw him saying (doing) this way, and he would point with his forefinger making a circle by joining the middle finger with his thumb.

حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا بِشْرٌ، - يَعْنِي ابْنَ الْمُفَضَّلِ - حَدَّثَنَا عَبْدُ الرَّحْمَنِ، - يَعْنِي ابْنَ إِسْحَاقَ - عَنْ عَبْدِ الرَّحْمَنِ بْنِ مُعَاوِيَةَ، عَنِ ابْنِ أَبِي ذُبَابٍ، عَنْ سَهْلِ بْنِ سَعْدٍ، قَالَ مَا رَأَيْتُ رَسُولَ اللَّهِ ﷺ شَاهِرًا يَدَيْهِ قَطُّ يَدْعُو عَلَى مِنْبَرِهِ وَلاَ عَلَى غَيْرِهِ وَلَكِنْ رَأَيْتُهُ يَقُولُ هَكَذَا وَأَشَارَ بِالسَّبَّابَةِ وَعَقَدَ الْوُسْطَى بِالإِبْهَامِ .