Sahih Muslim
Sahih Muslim 579 a
The description of the sitting during the prayer, and how the hands are to be placed on the thighs
Arabic hadith text
حَدَّثَنَا مُحَمَّدُ بْنُ مَعْمَرِ بْنِ رِبْعِيٍّ الْقَيْسِيُّ، حَدَّثَنَا أَبُو هِشَامٍ الْمَخْزُومِيُّ، عَنْ عَبْدِ الْوَاحِدِ، - وَهُوَ ابْنُ زِيَادٍ - حَدَّثَنَا عُثْمَانُ بْنُ حَكِيمٍ، حَدَّثَنِي عَامِرُ بْنُ عَبْدِ اللَّهِ بْنِ الزُّبَيْرِ، عَنْ أَبِيهِ، قَالَ كَانَ رَسُولُ اللَّهِ صلى الله عليه وسلمإِذَا قَعَدَ فِي الصَّلاَةِ جَعَلَ قَدَمَهُ الْيُسْرَى بَيْنَ فَخِذِهِ وَسَاقِهِ وَفَرَشَ قَدَمَهُ الْيُمْنَى وَوَضَعَ يَدَهُ الْيُسْرَى عَلَى رُكْبَتِهِ الْيُسْرَى وَوَضَعَ يَدَهُ الْيُمْنَى عَلَى فَخِذِهِ الْيُمْنَى وَأَشَارَ بِإِصْبَعِهِ .
Translation
Abdullah b. Zubair narrated on the authority of his father
When the Messenger of Allah (ﷺ) sat in prayer. he placed the left foot between his thigh and shank and stretched the right foot and placed his left hand on his left knee and placed his right hand on his right thigh, and raised his finger.