Hostage-taking is sanctioned in Islamic law and subject to particular rules: “As for the captives, the amir [ruler] has the choice of taking the most beneficial action of four possibilities: the first to put them to death by cutting their necks; the second, to enslave them and apply the laws of slavery regarding their sale and manumission; the third, to ransom them in exchange for goods or prisoners; and fourth, to show favor to them and pardon them. Allah, may he be exalted, says, ‘When you encounter those [infidels] who deny [the Truth=Islam] then strike [their] necks’ (Qur’an sura 47, verse 4)” — Al-Mawardi, al-Ahkam as-Sultaniyyah (The Laws of Islamic Governance).

“Police rescue 259 from Ibadan house of horror,” Punch, November 5, 2019 (thanks to The Religion of Peace):