Question Summary:
It is not permissible for the young wife to donate her eggs to the elder wife

Question Detail:

I have two wifes, one is old and can;t have children, while the new one is young and can have babies, my question is can I use a donated egg from the young one to the old ones by using IVF, I will take into consideration the name of the ivf baby will be carry the name of the young donating wife.
Would you please tell me the Islamic say about that.  
By the way I love both wife's and I want the old ones to have the feeling of carrying babies, please advise me.

Answer :

In the Name of Allah, the Most Gracious, the Most Merciful.
As-salāmu ‘alaykum wa-rahmatullāhi wa-barakātuhu
It is not permissible for the young wife to donate her eggs to the elder wife.
 
And Allah Ta’āla Knows Best
Ismail Desai,
Darul Iftaa
 
Checked and Approved,
Mufti Ebrahim Desai.