The ruling on reserving a place in the front row of the mosque

Question:
He says: Honorable Shaykh, may Allah grant you success. Reserving places in the mosque for whoever arrives first, where he places something like a mat in the front row and then returns to the back rows. Are these actions permissible? If the owner of the mat or the stick is in the mosque, and he only delayed to stretch out or to move away from the noises,

Answer:
then there is nothing wrong with it; because he is present in the mosque. Likewise, if he places these items and goes out to perform wudu' and returns after a short time, he has the right to the place where he put the barrier. But if he puts the barrier in the row and goes to buy and sell, or goes to sleep at his house, or goes to eat and drink at his house, and he delays and does not come back until late, reserving the place, this is injustice and is not permissible. This is injustice and is not permissible, and it is obligatory to remove the mat and the reservation. Yes.
Standing upright. Yes. And Honorable Shaykh, in completing his question, if he sleeps in the back of the mosque and places [his mat] in the mosque while he is present, he has the right to do so. It is possible to sleep if he is overcome by drowsiness or if sleeping is difficult for him and he goes to ease his sleep, there is nothing wrong with that, as long as he is present in the mosque.