The remaining money belongs to the one who performed Hajj on behalf of another for a fee
Machine translationRead the Arabic original
Question:
The questioner: If a person performs Hajj on behalf of someone else for a fee, and some of the money remains from this Hajj, does he take it?
Answer:
The Shaykh: We do not say "fee," my brother; we say this money is for the expenses of Hajj. If he pays it to him and stipulates that he return the remainder, he returns the remainder. And if he gives it to him without stipulating anything, it belongs to him. Yes.
The questioner: If a person performs Hajj on behalf of someone else for a fee, and some of the money remains from this Hajj, does he take it?
Answer:
The Shaykh: We do not say "fee," my brother; we say this money is for the expenses of Hajj. If he pays it to him and stipulates that he return the remainder, he returns the remainder. And if he gives it to him without stipulating anything, it belongs to him. Yes.
Source
قناة «العلامة الدكتور صالح الفوزان»، برنامج (فتاوى) (108) لمعالي الشيخ صالح الفوزان بتاريخ [1436-12-05] - كبار العلماء — youtube.com (17:40)
The Arabic text is a machine transcription of the audio recording.