What is the ruling on the prayer of tasbih and what is its method?

Question:
Our brother has a long question, all of it about the prayer of tasbih and its method. How do you guide him and his brothers regarding this topic? May Allah reward you with good.

Answer:
It is not prescribed because of its ambiguity, for the hadith reported about it is not authenticated by the scholars and those knowledgeable in hadith. As long as the hadith is not authentic, this prayer is not prescribed; rather, it is considered a bid'ah (religious innovation). Also, its form contradicts the form of the prescribed prayer, as it includes reciting the Qur'an in the standing positions, reciting the Qur'an in prostration, and features that are strange and contradict the prescribed prayers. This indicates that it has no merit. Whoever seeks reward and recompense should suffice with the prescribed prayers, which, praise be to Allah, are numerous and well-known. However, let him not neglect the witr and the rawatib (regular voluntary prayers) attached to the obligatory prayers, and the Dhuha prayer. Indeed, there is an opportunity for the Muslim to pray voluntary prayers except in the times when prayer is prohibited, which are limited: from the dawn until the sun has risen, there is no voluntary prayer except the Fajr prayer; from the 'Asr prayer until the sun sets, there is no voluntary prayer; and when the sun is at its zenith until it leans toward the west, it is not permissible to pray voluntary prayers. These times are limited, and no voluntary prayers are performed in them. Apart from these, the matter is open for the Muslim to pray at night or during the day. The prescribed prayers established in the Book of Allah and the Sunnah of His Messenger (peace and blessings be upon him) contain goodness, reward, and recompense for those from whom Allah accepts. May Allah reward you with good, and may He do you good.