أَخْبَرَنَا سُوَيْدُ بْنُ نَصْرٍ، قَالَ أَنْبَأَنَا عَبْدُ اللَّهِ، عَنْ شُعْبَةَ، عَنِ الْحَكَمِ، قَالَ سَمِعْتُ أَبَا وَائِلٍ، يَقُولُ قَالَ عَبْدُ اللَّهِ مَنْ أَوْهَمَ فِي صَلاَتِهِ فَلْيَتَحَرَّ الصَّوَابَ ثُمَّ يَسْجُدْ سَجْدَتَيْنِ بَعْدَ مَا يَفْرُغُ وَهُوَ جَالِسٌ ‏.‏

“Whoever us not sure about his prayer, then let him estimate what is correct, then let him prostrate twice after he finished his prayer, while he is sitting.”

Chain Family Tree

4 narrators from originator to compiler