Is the Sunnah to place one marker on the grave or two?

Question:
He says: Honorable Shaykh, may Allah grant you success, do the people of the Sunnah place one marker on the grave or two?

Answer:
The purpose of placing markers, my brothers, the purpose of placing markers is to know the boundaries of the grave so that it is not desecrated. If only one marker is placed on it, its other end is not known, and it may be desecrated. So whoever says that only one marker is placed, we do not listen to him; two markers are placed at the two ends of the grave so that its boundaries are known. Yes. And some of them say that only one marker is placed for a woman, and two for a man. They even say that only her marker is placed for the poor woman, and two are placed for the man. This is something they made up on their own. Yes.