Why are homosexuality and lesbianism considered forbidden in Islam, and what is mentioned about them in the Quran and Sunnah?

A Muslim must be certain that the Divine Law is wise, and that what it commands and forbids contains profound wisdom and aligns with sound human nature. Indeed, those who contravene sound human nature by denying the prohibition of divorce and polygyny, and by permitting intoxicants, have reached a deplorable state marked by the spread of crimes, vices, and deadly diseases such as AIDS, in addition to the disintegration and dissolution of families.

Adultery and sodomy are corrupting acts that contradict the wisdom of Allah the Almighty. Ibn al-Qayyim said concerning sodomy that its harms are beyond measure, and that death for the passive partner is better than being subjected to such an act, due to a corruption from which no rectification can thereafter be hoped for.

Lesbianism is a woman engaging with another woman as a man would with her, whereas sodomy is a male engaging in anal sex with another male, which was the act of the accursed people of Lot. These acts are mentioned in the Holy Quran and the Prophetic Sunnah with condemnation and punishment for their perpetrators, as Allah punished the people of Lot with stones.

The verses and Prophetic hadiths have clarified the severe prohibition of these acts, as Allah the Almighty said: “And as for the two who commit it among you, dishonor them both. But if they repent and correct themselves, then turn away from them. Indeed, Allah is ever Accepting of repentance and Merciful.” [An-Nisa: 16]. And the Prophet, peace and blessings be upon him, said: "Indeed, the most feared thing I fear for my nation is the act of the people of Lot." And he, peace and blessings be upon him, also said: "Cursed is he who does the act of the people of Lot." And he, peace and blessings be upon him, also said: "Whoever you find doing the act of the people of Lot, kill the doer and the one to whom it is done."