This is exactly what my research has determined. The method of NAMAZ is not described in the Quran since Allah never ordained it. It was invented by the Persian "Imams". RUKOO' & SAJDAH in the Quran are allegorical and not physical terms. They indicate bowing before Allah's ordinances and adoring his commands.
Kindly read the following post to get the detailed answer in case you missed it.
Shabbir, a life-long student