A book in Dutch confirms that each act of worship has a certain way to perform which Allah or his Prophet (peace be upon him) clarified so it shows and describes in detail the Prophet's prayer. It urges every Muslim to imitate the Prophet as in his saying, "Pray as you saw me pray."
This is an advice from the previous Grand Mufti in Saudi Arabia in regard to Riba (usury) transactions that have proliferated in the recent times through the numerous financial institutions that have been established throughout the world.
A fatwa translated into English shows some significant aspects of the taraweeh prayer in Ramadan month such as: Its time, number of units, and Quran recitation in it.