[Machine] From Mujahid, "And whoever among you is unable [to marry free believing women], then [he may marry] from those your right hands possess of believing slave girls. And Allah is most knowing about your faith. You [believers] are of one another. So, marry them with the permission of their people and give them their due compensation according to what is acceptable. [They should be] chaste, neither [of] those who commit unlawful intercourse randomly nor those who take [secret] lovers. But once they are sheltered in marriage, if they should commit adultery, then for them is half the punishment for free [unmarried] women. This [allowance] is for him among you who fears sin, but to be patient is better for you. And Allah is Forgiving and Merciful." And it is permissible [to marry them].  

عَنْ مُجَاهِدٍ {وَمَنْ لَمْ يَسْتَطِعْ مِنْكُمْ طَوْلًا} [النساء 25] يَعْنِي مَنْ لَمْ يَجِدْ مِنْكُمْ غِنًى يَقُولُ مَنْ لَمْ يَجِدْ غِنًى أَنْ يَنْكِحَ الْمُحْصَنَاتِ يَعْنِي الْحَرَائِرَ فَلْيَنْكِحِ الْأَمَةَ الْمُؤْمِنَةَ {وَأَنْ تَصْبِرُوا} [النساء 25] عَنْ نِكَاحِ الْإِمَاءِ فَهُوَ {خَيْرٌ لَكُمْ} [البقرة 54] وَهُوَ حَلَالٌ