Is it permissible for a sister to take a part of the charity allocated for her disabled sisters?

A: If these disabled girls do not have sufficient money to cover their needs, their guardian is permitted to accept Sadaqah that is sufficient to cover their needs and to provide for them. However, he is not permitted to take a cent from the money they receive, as that money is allotted for them. Also, their healthy daughter is not allowed to take from this money. If the State agencies that care for the disabled have assigned a sufficient sum of money to be regularly given out to these girls, their guardian is no longer permitted to accept charity for them as they are no longer in need of it.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.