Wants to perform the obligatory duty of Hajj

Q: Is it permissible for a daughter to perform Hajj on behalf of her mother, because she suffers from an illness that renders her unable to perform Hajj? This illness affects the right side of her body, from hand to foot, diagnosed as a nervous disorder. My mother is also a very old woman.

(Part No. 11; Page No. 87)  A: It is permissible for this daughter to perform Hajj for her mother, as her mother cannot go to Hajj due to the illness that was mentioned in the question.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.