Arabic (Original)
حَدَّثَنَا عَبْدُ الرَّزَّاقِ حَدَّثَنَا مَعْمَرٌ عَنْ عُبَيْدِ اللَّهِ بْنِ عُمَرَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ كَانَ إِذَا جَلَسَ فِي الصَّلَاةِ وَضَعَ يَدَيْهِ عَلَى رُكْبَتَيْهِ وَرَفَعَ أُصْبُعَهُ الْيُمْنَى الَّتِي تَلِي الْإِبْهَامَ فَدَعَا بِهَا وَيَدُهُ الْيُسْرَى عَلَى رُكْبَتَيْهِ بَاسِطَهَا عَلَيْهَا.
English Translation
Abdur-Razzaq told us, Ma'mar told us, from Ubaydullah ibn Umar, from Nafi', from Ibn Umar, that the Messenger of Allah (peace and blessings be upon him), when he sat during the prayer, would place his hands on his knees and raise his right forefinger, the one next to the thumb, and make supplication with it, while his left hand rested spread flat on his knee.