Does the miqat differ for one who enters ihram on behalf of another?

Question : May Allah reward you with good. The questioner, who used the initials M.A. as a code for his name, residing in Riyadh, says: I reside in Makkah, and my brother passed away in Egypt. I intend to perform the obligatory Hajj on his behalf. From where should the miqat be?

Answer : First, this questioner must have already performed the obligatory Hajj for himself. If he has performed the obligatory Hajj for himself, then if he is in Makkah, he enters ihram from Makkah; if he is outside Makkah, he enters ihram from his current location; and if he is beyond the miqats, he enters ihram when he reaches the miqat. That is to say, one who enters ihram on behalf of another is like one who enters ihram on behalf of...