Ibn 'Umar reported that when the Messenger of Allah ﷺ sat for tashahhud he placed his left hand on his left knee. and his right hand on his right knee. and he raised his right finger, which is next to the thumb, making supplication in this way, and he stretched his left hand on his left knee.  

أَنَّ النَّبِيَّ ﷺ كَانَ إِذَا جَلَسَ فِي الصَّلاَةِ وَضَعَ يَدَيْهِ عَلَى رُكْبَتَيْهِ وَرَفَعَ إِصْبَعَهُ الْيُمْنَى الَّتِي تَلِي الإِبْهَامَ فَدَعَا بِهَا وَيَدَهُ الْيُسْرَى عَلَى رُكْبَتِهِ الْيُسْرَى بَاسِطُهَا عَلَيْهَا  

When the Messenger of Allah ﷺ sat during the prayer, he put his hands on his knees and raised the finger that is next to the thumb, and supplicates with it, and his left hand was on his knee laid on it.  

أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ إِذَا جَلَسَ فِي الصَّلاَةِ وَضَعَ يَدَيْهِ عَلَى رُكْبَتَيْهِ وَرَفَعَ أُصْبُعَهُ الَّتِي تَلِي الإِبْهَامَ فَدَعَا بِهَا وَيَدَهُ الْيُسْرَى عَلَى رُكْبَتِهِ بَاسِطُهَا عَلَيْهَا  

"When the Prophet would sit during the Salat, he would place his right hand on his knee, and raise his finger, the one that is next to the [right] thumb, supplicating with it, and his left hand was spread flat on his left knee."  

أَنَّ النَّبِيَّ ﷺ كَانَ إِذَا جَلَسَ فِي الصَّلاَةِ وَضَعَ يَدَهُ الْيُمْنَى عَلَى رُكْبَتِهِ وَرَفَعَ إِصْبَعَهُ الَّتِي تَلِي الإِبْهَامَ الْيُمْنَى يَدْعُو بِهَا وَيَدُهُ الْيُسْرَى عَلَى رُكْبَتِهِ بَاسِطَهَا عَلَيْهِ قَالَ وَفِي الْبَابِ عَنْ عَبْدِ اللَّهِ بْنِ الزُّبَيْرِ وَنُمَيْرٍ الْخُزَاعِيِّ وَأَبِي هُرَيْرَةَ وَأَبِي حُمَيْدٍ وَوَائِلِ بْنِ حُجْرٍ  

It was narrated from Ibn ‘Umar that the Prophet ﷺ used to sit during prayer, putting his hands on his knees and raising his right finger which was next to his thumb, supplicating with it, and with his left hand (spread out) on his knee.  

أَنَّ النَّبِيَّ ﷺ كَانَ إِذَا جَلَسَ فِي الصَّلاَةِ وَضَعَ يَدَيْهِ عَلَى رُكْبَتَيْهِ وَرَفَعَ إِصْبَعَهُ الْيُمْنَى الَّتِي تَلِي الإِبْهَامَ فَيَدْعُو بِهَا وَالْيُسْرَى عَلَى رُكْبَتِهِ بَاسِطَهَا عَلَيْهَا  

When the Messenger of Allah ﷺ sat during the prayer, he put his hands on his knees and raised the finger that is next to the thumb, and supplicates with it, and his left hand was on his knee laid on it. (Using translation from Nasāʾī 1269)  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ إِذَا جَلَسَ فِي الصَّلَاةِ وَضَعَ يَدَيْهِ عَلَى رُكْبَتَيْهِ وَرَفَعَ أُصْبُعَهُ الْيُمْنَى الَّتِي تَلِي الْإِبْهَامَ فَدَعَا بِهَا وَيَدُهُ الْيُسْرَى عَلَى رُكْبَتِهِ بَاسِطَهَا عَلَيْهَا  

It was narrated from Ibn ‘Umar that the Prophet ﷺ used to sit during prayer, putting his hands on his knees and raising his right finger which was next to his thumb, supplicating with it, and with his left hand (spread out) on his knee. (Using translation from Ibn Mājah 913)  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ «إِذَا جَلَسَ فِي الصَّلَاةِ وَضْعَ يَدَيْهِ عَلَى رُكْبَتَيْهِ وَرَفَعَ إِصْبُعَهُ الَّتِي تَلِي الْإِبْهَامَ يَدْعُو بِهَا وَيَدُهُ الْيُسْرَى عَلَى رُكْبَتَهُ بَاسِطُهَا عَلَيْهَا»