If your mother asked you to help her perform Hajj and you cannot afford its costs
mother asked you to help her perform Hajj and you cannot afford the costs of Hajj due to your financial inability, you are not to blame because you cannot fulfill her request. Allah (Glorified and Exalted be He) states:
Allâh burdens not a person beyond his scope.
...and He has not laid upon you in religion any hardship
Allah (Glorified and Exalted be He) also states:
So keep your duty to Allâh and fear Him as much as you can
Furthermore, Hajj is not mandatory on her in this case so long as she cannot afford the costs of Hajj herself. You should speak kindly and gently to her and treat her in the best manner. You may promise her to help her perform Hajj in the future whenever it is possible for you. (Part No. 10; Page No. 17) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.