The Ruling on Tawruk in Prayer

Question:
He says: Honorable Shaykh, may Allah grant you success, tawruk is a recommended practice (sunnah). When is it prescribed? When does one commit a sin by performing it? And what are the limits of the harm caused by it?

Answer:
The sin lies in what one is obligated to do by standing up, because it is prescribed in the prayer. However, regarding tawruk, he says: What is tawruk? Tawruk is only in the prayer that has two sittings: the first tashahhud and the second tashahhud. Tawruk is in the second tashahhud, while the first tashahhud is done in iftirash. As for the prayer that has only one sitting, such as Fajr, this is a point of disagreement among scholars. The stronger position, and Allah knows best, is that one does not perform tawruk in it, but rather performs iftirash. If his neighbors are harmed by him doing so while he is content, no, he should not harm the neighbors. If performing tawruk in the final tashahhud harms the neighbors, no, he performs iftirash. Yes.