Wa `alaykum as-salamu wa rahmatullahi wa barakatuh.
In the Name of Allah, Most Gracious, Most Merciful.
All praise and thanks are due to Allah, and peace and blessings be upon His Messenger.
In this fatwa:
Responding to the question, Sheikh Ahmad Kutty, a senior lecturer and Islamic scholar at the Islamic Institute of Toronto, Ontario, Canada states,
This is not considered permissible according to the principles of Islam, for the sperm was taken when he was still not married to the woman whose eggs were injected with the sperm. She was, therefore, not lawful for him at that time.
In Islam, the sperm and the egg must be both extracted and united while the man and woman are lawfully married. That was not the case at the time of extracting the sperm in this case.
Allah Almighty knows best.
Editor’s note: This fatwa is from Ask the Scholar’s archive and was originally published at an earlier date.