Is there a supererogatory prayer exceeding twelve continuous rak'ahs, in which the tashahhud is only recited in the last rak'ah, and which includes reciting Ayatul-Kursi and Al-Fatihah seven times each, "La ilaha illallah" ten times, and Salat upon the Prophet ten times in every two rak'ahs, with an additional third prostration after the second prostration in every two rak'ahs?

This prayer is impermissible and invalid. Adding more than two prostrations in a single raka'ah invalidates the prayer by scholarly consensus. Furthermore, designating specific remembrances and manners for prayer that have not been authenticated from the Prophet, peace and blessings be upon him, is considered an innovation (bid'ah), as the Prophet, peace and blessings be upon him, said: "Whoever introduces into this affair of ours that which is not from it will have it rejected." As for increasing voluntary prayers beyond two raka'ahs, there is a difference of opinion among scholars. Some, like Malik, prohibited it, while others, like Al-Shafi'i, Ahmad, and Abu Hanifa, permitted it. However, it is preferable to make taslim after every two raka'ahs, based on the Prophet's saying, peace and blessings be upon him: "The night prayer is two by two." Therefore, Muslims must follow his Sunnah, peace and blessings be upon him, and avoid innovations.