Prohibition of Adoption (as a Legal Fiction) in the Holy Quran

﴿ مَّا جَعَلَ ٱللَّهُ لِرَجُلٖ مِّن قَلۡبَيۡنِ فِي جَوۡفِهِۦۚ وَمَا جَعَلَ أَزۡوَٰجَكُمُ ٱلَّٰٓـِٔي تُظَٰهِرُونَ مِنۡهُنَّ أُمَّهَٰتِكُمۡۚ وَمَا جَعَلَ أَدۡعِيَآءَكُمۡ أَبۡنَآءَكُمۡۚ ذَٰلِكُمۡ قَوۡلُكُم بِأَفۡوَٰهِكُمۡۖ وَٱللَّهُ يَقُولُ ٱلۡحَقَّ وَهُوَ يَهۡدِي ٱلسَّبِيلَ * ٱدۡعُوهُمۡ لِأٓبَآئِهِمۡ هُوَ أَقۡسَطُ عِندَ ٱللَّهِۚ فَإِن لَّمۡ تَعۡلَمُوٓاْ ءَابَآءَهُمۡ فَإِخۡوَٰنُكُمۡ فِي ٱلدِّينِ وَمَوَٰلِيكُمۡۚ وَلَيۡسَ عَلَيۡكُمۡ جُنَاحٞ فِيمَآ أَخۡطَأۡتُم بِهِۦ وَلَٰكِن مَّا تَعَمَّدَتۡ قُلُوبُكُمۡۚ وَكَانَ ٱللَّهُ غَفُورٗا رَّحِيمًا ﴾ [Al-Aḥzāb: 4-5]

(4) Allah has not made for a man two hearts in his interior. And He has not made your wives whom you declare unlawful your mothers. And he has not made your adopted sons your [true] sons. That is [merely] your saying by your mouths, but Allah says the truth, and He guides to the [right] way.

(5) Call them by [the names of] their fathers; it is more just in the sight of Allah. But if you do not know their fathers - then they are [still] your brothers in religion and those entrusted to you. And there is no blame upon you for that in which you have erred but [only for] what your hearts intended. And ever is Allah Forgiving and Merciful.

Surah: Al-Aḥzāb - Verse: 4-5 - Juz: 21 - Page: 418

﴿مَّا كَانَ مُحَمَّدٌ أَبَآ أَحَدٖ مِّن رِّجَالِكُمۡ وَلَٰكِن رَّسُولَ ٱللَّهِ وَخَاتَمَ ٱلنَّبِيِّـۧنَۗ وَكَانَ ٱللَّهُ بِكُلِّ شَيۡءٍ عَلِيمٗا ﴾ [Al-Aḥzāb: 40]

(40) Muhammad is not the father of [any] one of your men, but [he is] the Messenger of Allah and last of the prophets. And ever is Allah, of all things, Knowing.

Surah: Al-Aḥzāb - Verse: 40 - Juz: 22 - Page: 423