Reciting Quran In Last Rakahs Of Salah
The question should be the othe way roud, how one come to know that in the 3rd and 4th rakaat a portion of Quran should not added just like the 1st and the 2nd Rakaat. This is a guess of some schoalrs that since the Qiyaam of the prophet in the 3rd and the 4rth Rakaat was lighter or shorter than the first two rakaat, so he might have rected Fatiah only. This guess has no solid grounds. Therefore it is recommended to do the same in the last two rakaat too.