There is nothing wrong with a person doing Hajj at the expense of someone else, regardless of who the sponsor is, and it does not affect the validity of his Hajj.

Some of the scholars have discussed the hadith which reads: “Allah says: ‘A person whose body I make healthy and to whom I grant ample provision but five years go by and he does not come to Me is indeed deprived.’” Some of them were of the view that it is fabricated. Others classed it as weak.

If a Muslim dies after he has become able to perform Hajj, then his heir has to do Hajj on his behalf himself, or he can delegate someone else to do Hajj for him. It should be paid for from the money of the deceased, because this is a debt he owes.