Is ordering food delivery to the mosque and paying for it considered a sale that is prohibited in the mosque?

Question:
He says: Honorable Shaykh, may Allah grant you success, if I call a restaurant to deliver food while I am in the mosque, and then when it arrives I take the food from him and give him the money, is this of the sale that is prohibited in the mosque? Repeat the question. He says: If I call a restaurant to deliver food while I am in the mosque, and then when it arrives I take the food and give him the money, is this of the sale that is prohibited?

Answer:
It does not appear that this is a sale, because this is called mu'atah (exchange by mutual consent) as mentioned previously. The item is of known value, and what happens between you is that you say, "Sell me this," and he says, "I sold it," and you say, "I accepted." No, this is mu'atah. It is food of known value, he brings it to you, and you settle the account with him afterward.