Some person offering `Umrah wants to help his handicapped mother on a wheelchair to offer the rituals of `Umrah together

Q: In sha’a-Allah (if Allah wills), at the beginning of the coming Ramadan I will perform `Umrah (lesser pilgrimage) on behalf of my dead father, may Allah have mercy upon him! Also, my mother will come to perform `Umrah at the same time. However, she is old and disabled. I will push her on a wheelchair during Tawaf (circumambulation of the Ka`bah) and Sa`y (going between Safa and Marwah during Hajj and `Umrah). Are my rituals of the `Umrah valid? Or should I wait until she performs her `Umrah and after that I offer Tawaf and Sa`y of the `Umrah of my father?

A: There is nothing wrong with you pushing the wheelchair of your mother during (Part No. 10; Page No. 223) Tawaf (circumambulation of the Ka`bah) and Sa`y (going between Safa and Marwah during Hajj and `Umrah). She has the intention of performing her rituals and you have the intention to perform them on behalf of your father at the same time. The Prophet (peace be upon him) said: The reward of deeds depends upon the intentions and every person will get the reward according to what he has intended. May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.