The Book of Prayer - Friday
وَحَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ إِدْرِيسَ، عَنْ حُصَيْنٍ، عَنْ عُمَارَةَ، بْنِ رُؤَيْبَةَ قَالَ رَأَى بِشْرَ بْنَ مَرْوَانَ عَلَى الْمِنْبَرِ رَافِعًا يَدَيْهِ فَقَالَ قَبَّحَ اللَّهُ هَاتَيْنِ الْيَدَيْنِ لَقَدْ رَأَيْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم مَا يَزِيدُ عَلَى أَنْ يَقُولَ بِيَدِهِ هَكَذَا . وَأَشَارَ بِإِصْبَعِهِ الْمُسَبِّحَةِ .Umara b. Ruwaiba said he saw Bishr b. Marwan on the pulpit raising his hands and said:Allah, disfigure these hands! I have seen Allah's Messenger (ﷺ) gesture no more than this with his hands, and he pointed with his forefinger
From Sahih Muslim, whose reports the scholars accept as authentic.