Sunan an-Nasa'i 1268

أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ بْنُ الْمُبَارَكِ، عَنْ زَائِدَةَ، قَالَ حَدَّثَنَا عَاصِمُ بْنُ كُلَيْبٍ، قَالَ حَدَّثَنِي أَبِي أَنَّ وَائِلَ بْنَ حُجْرٍ، قَالَ قُلْتُ لأَنْظُرَنَّ إِلَى صَلاَةِ رَسُولِ اللَّهِ صلى الله عليه وسلم كَيْفَ يُصَلِّي فَنَظَرْتُ إِلَيْهِ فَوَصَفَ قَالَ ثُمَّ قَعَدَ وَافْتَرَشَ رِجْلَهُ الْيُسْرَى وَوَضَعَ كَفَّهُ الْيُسْرَى عَلَى فَخِذِهِ وَرُكْبَتِهِ الْيُسْرَى وَجَعَلَ حَدَّ مِرْفَقِهِ الأَيْمَنِ عَلَى فَخِذِهِ الْيُمْنَى ثُمَّ قَبَضَ اثْنَتَيْنِ مِنْ أَصَابِعِهِ وَحَلَّقَ حَلْقَةً ثُمَّ رَفَعَ أُصْبُعَهُ فَرَأَيْتُهُ يُحَرِّكُهَا يَدْعُو بِهَا ‏.‏ مُخْتَصَرٌ ‏.‏

Wa'il bin Hujr said:"I am going to watch the Messenger of Allah (ﷺ) and see how he prays. So, I watched him." And he described (his prayer): "Then he sat and lay his left foot on the ground, and placed his left hand on his left thigh and knee. He put his right elbow on his right thigh, then he made a circle with two fingers of his (right) hand, then he raised his finger and I saw him moving it, supplicating with it

Reference

Sunan an-Nasa'i 1268

In-book

Book 13, Hadith 90