If the person in i'tikaf (spiritual retreat in the mosque) does not trust the one he appoints to bring him books, does he have to leave?

The questioner : Shaykh, may Allah reward you. Sometimes a book is offered, and a person has no choice but to make a statement about it, especially if he does not know the books well and does not trust the one he appoints. So, is his statement valid in that case, or is it obligatory for him to make a condition, and is that condition valid in that case?

The Shaykh : There is an error in this, as we said. One can send a person to say, "Buy such-and-such a book."

The questioner : It does not matter to you.

The Shaykh : They do not trust them.

The questioner : He must bring the copy that is...

The Shaykh : How can he not trust him when he is a friend? I do not want someone to be holding out in the mosque saying, "Buy this."

The questioner : No, but he does not know the copies as he knows them.

The Shaykh : He describes them to you.

The questioner : Okay, is his condition valid?

The Shaykh : What?

The questioner : Is it valid for him to make a condition regarding leaving? He says, "Except if some other book comes."

The Shaykh : This is valid because this is a religious objective. However, if he were a bookstore merchant, it would not be valid.