Arabic (Original)
أَخْبَرَنَا الْفَضْلُ بْنُ الْحُبَابِ الْجُمَحِيُّ قَالَ حَدَّثَنَا أَبُو الْوَلِيدِ قَالَ حَدَّثَنَا شُعْبَةُ عَنْ أَبِي يَعْفُورٍ قَالَ سَمِعْتُ مُصْعَبَ بْنَ سَعْدِ بْنِ أَبِي وَقَّاصٍ يَقُولُ صَلَّيْتُ إِلَى جَنْبِ أَبِي فَطَبَّقْتُ بَيْنَ كَفَّيَّ ثُمَّ وَضَعْتُهُمَا بَيْنَ فَخِذِيَّ فَنَهَانِي عَنْ ذَلِكَ وَقَالَ كُنَّا نَفْعَلُ هَذَا فَنُهِينَا عَنْهُ وَأُمِرْنَا أَنْ نَضَعَ عَلَى الرُّكَبِ
English Translation
Mus'ab ibn Sa'd ibn Abi Waqqas said: I prayed beside my father, and I pressed my palms together and then placed them between my thighs. He prohibited me from that and said: 'We used to do this, but we were prohibited from it and commanded to place them on the knees.'