Sayyiduna Wa'il bin Hujr (may Allah be pleased with him) said: I watched the Prophet (peace and blessings be upon him) closely. He (peace and blessings be upon him) raised his hands in the prayer when saying the takbir, then when he said the takbir (for bowing) he raised his hands, then when he said "Sami'a Allahu liman hamidah (Allah hears the one who praises Him)" he raised his hands. Then he sat and spread out his left foot, then placed his left hand on his left knee and his right forearm on his right thigh, then pointed with his index finger, placed the thumb on the middle finger forming a ring, and closed the remaining fingers. Then he prostrated, and his (peace and blessings be upon him) two hands were level with his ears.
Hadith Referenceالمعجم الكبير للطبراني / باب الواو / 18301