What is the ruling on performing multiple 'Umrah pilgrimages during a single visit?

Question:
He says: My father instructed me to perform 'Umrah on behalf of my deceased grandfather, on behalf of my deceased grandfather. After I have finished performing my own 'Umrah, is this considered valid?

Answer:
There is no harm in that. If you have performed 'Umrah for yourself as the 'Umrah of Islam, there is no harm in performing 'Umrah for someone else, for your grandfather or for any of your Muslim brothers. There is no harm, because this is a good deed and a benefit for the Muslims. Whether you bring the 'Umrah from your home city or from Makkah by going out to al-Tan'im or to al-Hal and entering the state of ihram for 'Umrah on behalf of any of your relatives or the Muslims, this is permissible. However, for the one who is in Makkah, it is better for him to remain in the Sacred Mosque for worship and not go out for 'Umrah; this is what is better. And if he goes out and performs 'Umrah, this is permissible, if Allah wills.