Fertilization of wife’s egg outside the uterus

Dear Brothers & Sisters,
As-Salaamu-Alaikum wa Rahmatullahi wa Barakatuh. (May Allah's Peace, Mercy and Blessings be upon all of you)
One of our brothers/sisters has asked this question:
If the one who will carry a pregnancy – i.e., the one in whose womb the man’s sperm or the gamete will be implanted – is the wife of the man who produces the sperm, and that sperm is placed directly in her womb by medical means, noting that the man is unable to place his sperm there in the natural manner for some reason, what is the ruling on this case?
(There may be some grammatical and spelling errors in the above statement. The forum does not change anything from questions, comments and statements received from our readers for circulation in confidentiality.)
Check below answers in case you are looking for other related questions:
Mixed farewell parties
Aphrodisiacs and the ruling on taking them

Answer:

Praise be to Allaah.

Concerning the situation mentioned in the question, there has been a great deal of discussion amongst the scholars of the current age. Some say that it is permissible, some say that it is forbidden, and some say that we cannot comment either way. Among those who said that we cannot comment either way was Shaykh ‘Abd al-‘Azeez ibn Baaz (may Allaah have mercy on him). The researcher thought that the view of the majority of modern scholars is most likely to be correct, but subject to certain conditions, namely: 

(a)urgent need, i.e., when it is not possible to achieve pregnancy by natural means

(b)the doctor dealing with the case should think it most likely that no harm will be caused by doing this procedure

(c)there should be no room for sperm (lit. lineages) to be mixed

The ruling on the case mentioned is the same as the ruling on a case where sperm is taken from a man and an egg from his wife, then the egg is fertilized in a test tube and returned to the uterus. The most correct view is that this is permissible, subject to the conditions mentioned above. 

Whatever written of Truth and benefit is only due to Allah's Assistance and Guidance, and whatever of error is of me. Allah Alone Knows Best and He is the Only Source of Strength.
Your brother and well wisher in Islam

Related Answers:
Ruling on childhood immunizations and vaccinations
Testing new medicines on people in return for money
Ruling on cauterizing, and reconciling ahaadeeth on this topic which appear to contradict one another
Mixed farewell parties
Aphrodisiacs and the ruling on taking them

Recommended answers for you:
Questions about zakaah on jewellery and how it should be paid and who should pay it
Is there any hadd punishment or expiation for masturbation?
Virtues of the Day of Arafaah
He wants to marry a girl with whom he had a relationship
Divorcing a woman by talaaq when she is pregnant