ثنا مُحَمَّدُ بْنُ الْقَاسِمِ بْنِ زَكَرِيَّا ، حَدَّثَنَا أَبُو كُرَيْبٍ ، ثنا ابْنُ إِدْرِيسَ ، عَنْ عَاصِمِ بْنِ كُلَيْبٍ ، بِهَذَا ، وَقَالَ : " فَكَبَّرَ وَرَفَعَ يَدَيْهِ ، فَلَمَّا رَكَعَ طَبَّقَ يَدَيْهِ بَيْنَ رُكْبَتَيْهِ " ، فَبَلَغَ ذَلِكَ سَعْدًا ، فَقَالَ : صَدَقَ أَخِي ، كُنَّا نَفْعَلُ هَذَا ، ثُمَّ أُمِرْنَا بِهَذَا ، " وَوَضَعَ الْكَفَّيْنِ عَلَى الرُّكْبَتَيْنِ " . هَذَا إِسْنَادٌ ثَابِتٌ صَحِيحٌ.
The same narration is also transmitted with another chain, however, in it the words are: He said the takbir, raised both hands, then when he went into ruku', he joined both hands and placed them between his knees. When Sayyiduna Sa'd (may Allah be pleased with him) came to know about this, he said: My brother has spoken correctly, we used to do it this way before, but then we were commanded to place both palms on both knees. This chain is established and authentic.