Is adoption allowed in Islam?

What exactly is forbidden

The prohibition is not about caring for a child. It is about al-tabanni — the pre-Islamic custom of claiming a child as one's own son, so that he carries the man's name, inherits from him, and becomes a mahram to the women of the household.

Allah says:

"Call them by the names of their fathers; that is more just in the sight of Allah. But if you do not know their fathers, then they are your brothers in faith and your freedmen."— Qur'an 33:5

Islam abolished this custom, and the scholars explain that the harm it causes is what makes it forbidden: lineages are lost and confused, someone who is not a legal heir inherits, and a non-mahram is treated as a mahram. The Prophet ﷺ warned sternly against claiming a lineage that is not one's own:

"Whoever ascribes himself to other than his father, or claims allegiance to other than his patrons, upon him is the curse of Allah, the angels and all people."— Sunan Ibn Majah 2609, from Ibn Abbas

And in another narration:

"No man claims a father other than his own, knowing it, except that he has committed disbelief."— Sahih al-Bukhari and Sahih Muslim, from Abu Dharr

IslamWeb (fatwa 58889) notes that these two hadiths show that ascribing oneself to a father who is not one's own is among the major sins.

Kafalah is encouraged, not forbidden

The prohibition of tabanni does not mean orphans and foundlings are left without care. The scholars are explicit that what is forbidden is the nasab — the false lineage — not the upbringing. IslamWeb (fatwa 116404) puts it plainly: the foundling and the orphan are not to be abandoned; only their attribution to other than their real parents is forbidden, while caring for them is urged and carries great reward.

The Prophet ﷺ said:

"I and the one who cares for an orphan will be in Paradise like this" — and he held up his index and middle fingers, separating them slightly.— Sahih al-Bukhari and al-Tirmidhi 1918, from Sahl ibn Sa'd

Shaykh Ibn Baz explains the practical shape of this: a man may raise a child, treat him well and spend on him — because the child is an orphan or of unknown parentage — but he must not attribute him to himself. He should give him a proper name, such as "so-and-so son of Abdullah" or "son of Abdur-Rahman", and not say "my son". Ibn Baz gives the reason: attributing the child to yourself creates the impression that he is your son, which leads to inheritance between you and to your other children regarding him as a mahram for your daughters — and other such harm.

Conditions that come with kafalah

When a child is raised in a household without being formally adopted, several rulings follow, and the scholars set them out clearly:

• Keep his real name and lineage: if his father is known, he is attributed to him; if not, he is your brother in religion and your freedman, as the verse states.
• He does not inherit from you as a son: IslamWeb (fatwa 255196) explains that he has no share of the estate as a child would; he may receive a bequest (wasiyyah), which must not exceed one third.
• He is not a mahram: once the child reaches or approaches puberty, the rules of modesty and seclusion apply between him and the women of the house, unless he was breastfed by the woman in a way that establishes a foster relationship. IslamWeb (fatwa 120202) states this condition directly.
• No deception in official papers: if a child is registered under the name of the guardian, the guardian must make clear — in writing or before witnesses — that the child is not his real son, and must observe the rulings that follow from that.

When the law of the country requires registration

IslamWeb (fatwa 255196) addresses a genuine difficulty: sometimes a child can only be placed with a family if he is registered under the guardian's name. The response given is that necessity permits what is otherwise prohibited — for example, if the alternative is that a Muslim orphan is placed with a non-Muslim family and loses his religion. In that case, the lesser harm is the registration. But the guardian must still do everything he can to remove the effects Islam abolished: he must document that the child is not truly his son, observe the limits that follow, and arrange his will so that the estate is divided according to the Shari'ah.

IslamWeb (fatwa 157155) takes a stricter line on a similar case, holding that the child's situation does not amount to a necessity that makes adoption permissible, and advising the search for another route — such as bringing the child on a visa — that achieves the good without falling into what is forbidden.

If it has already happened

The scholars distinguish between ignorance and knowledge. IslamWeb (fatwa 58889) states that whoever adopted a child in the forbidden manner out of ignorance of the ruling bears no blame; whoever did it knowingly has sinned, and if he repents, Allah accepts his repentance. IslamWeb (fatwa 66997) adds that it is not permissible to remain in that state once one knows — the child must be told, however difficult that is — because continuing means the confusion of lineages and the loss of rights such as inheritance.

Key takeaways

• Legal adoption is forbidden: a child may not be given the name and lineage of a man who is not his father, and this applies to women as well as men.
• Kafalah is permitted and rewarded: raising an orphan or foundling, spending on him and treating him kindly is urged in the Shari'ah and carries great reward.
• Keep the child's real lineage: attribute him to his real father if known; if not, he is your brother in religion.
• Observe the consequences: he does not inherit as a child does, and the rules of modesty apply between him and the women of the household after puberty unless a foster relationship was established by breastfeeding.
• If you have already done it in ignorance, there is no blame — but once you know, the situation must be corrected, and repentance is accepted.

Further reading

• Shaykh Ibn Baz, Majmu' al-Fatawa — on the ruling of tabanni and the permissibility of kafalah
• The Permanent Committee for Scholarly Research and Ifta, fatwa 7007
• IslamWeb fatwas 58889, 116404 and 255196

And Allah knows best.