Is it permissible for a mother to spend from her adult daughter's savings, earmarked for Hajj, to perform the Hajj obligation herself?

If the aforementioned salary is in exchange for what was deducted from the father's money during his lifetime, then it is a right belonging to the heirs, to be divided among them according to their prescribed legal shares. The law's designation of the daughter for this money is of no consequence. However, if it was a grant from the state specifically for his daughter, then it is her exclusive right. It is not permissible to dispose of the money of an adult, sane daughter except with her permission. If she has not performed the obligatory Hajj, she is obligated to do so.