A person's mother who was deaf and dump died without performing Hajj, should he perform it on her behalf?

Q 2: My mother died without performing Hajj and she was deaf and dumb. I, her son, do not know whether she was offering Salah (Prayer) or not before her death. When I asked my father about this matter, he said that he thinks she was offering Salah, but he is not sure. He added that people in some locations were reckless in their observation of religious duties in the past due to their ignorance of the religious obligations and prohibitions. This was forty years ago. Should I perform Hajj on her behalf, if I can?

A: If the person in question can perform Hajj on behalf of his late mother, this would be good and an act of gratitude to her. However, it should be noted that when a person dies, his/her affairs are left to Allah's (Exalted be He) Judgment and his/her deeds should not be questioned by people after their death.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.