When going from standing position to prostration, first place the knees on the ground , then place the hands on the ground. Then the nose , then the forehead , it is Sunnah to maintain this continuity . And when he got up from prostration, he would raise his hands before his knees. - Abu Dawood Sharif , Hadith No. 638 , Tirmidhi Sharif , Hadith No. 38 , Nasai Sharif , Hadith No. 1069 Imam Tirmidhi. Referring to this hadith , he said that according to this hadith, it is the practice of most of the scholars. They think that they should put their hands on their knees before holding them. And do not raise the hand before the knee.