أَمَةٌ تُبَاعُ وَ تُورَثُ وَ تُوهَبُ وَ حَدُّهَا حَدُّ الْأَمَةِ[2].
I asked Abu Ja'far Imam Muhammad ibn Ali Al-Baqir (as), about Umm al-Walad (a female slave who bears a child for her master). Imam (as) said: "She is a slave. She can be sold, inherited, and gifted, and her legal ruling is the same as that of a slave."