"At the end of the last two rak'ahs of the prayer, the Prophet ﷺ would move his left foot forward and sit on his left buttock, Mutawarrikan, then he would say the taslim.  

كَانَ النَّبِيُّ ﷺ إِذَا كَانَ فِي الرَّكْعَتَيْنِ اللَّتَيْنِ تَنْقَضِي فِيهِمَا الصَّلاَةُ أَخَّرَ رِجْلَهُ الْيُسْرَى وَقَعَدَ عَلَى شِقِّهِ مُتَوَرِّكًا ثُمَّ سَلَّمَ  

"I saw the Messenger of Allah ﷺ raise his hands when he started to pray, and when he bowed, and when he raised his head from bowing. And when he sat, he would ay his left foot on the ground and keep his right foot upright, and he placed his left hand on his left thigh, and his right hand on his right thigh, making a circle with his middle finger and thumb, and pointing."  

رَأَيْتُ رَسُولَ اللَّهِ ﷺ يَرْفَعُ يَدَيْهِ إِذَا افْتَتَحَ الصَّلاَةَ وَإِذَا رَكَعَ وَإِذَا رَفَعَ رَأْسَهُ مِنَ الرُّكُوعِ وَإِذَا جَلَسَ أَضْجَعَ الْيُسْرَى وَنَصَبَ الْيُمْنَى وَوَضَعَ يَدَهُ الْيُسْرَى عَلَى فَخِذِهِ الْيُسْرَى وَيَدَهُ الْيُمْنَى عَلَى فَخِذِهِ الْيُمْنَى وَعَقَدَ ثِنْتَيْنِ الْوُسْطَى وَالإِبْهَامَ وَأَشَارَ