وَ رَوَى عُمَرُ بْنُ يَزِيدَ عَنْ أَبِي إِبْرَاهِيمَ عَلَيْهِ اَلسَّلاَمُ قَالَ: قُلْتُ لَهُ أَسْأَلُكَ قَالَ "سَلْ" قُلْتُ لِمَ بَاعَ أَمِيرُ اَلْمُؤْمِنِينَ عَلَيْهِ اَلسَّلاَمُ أُمَّهَاتِ اَلْأَوْلاَدِ فَقَالَ "فِي فَكَاكِ رِقَابِهِنَّ" قُلْتُ وَ كَيْفَ ذَاكَ قَالَ "أَيُّمَا رَجُلٍ اِشْتَرَى جَارِيَةً فَأَوْلَدَهَا ثُمَّ لَمْ يُؤَدِّ ثَمَنَهَا وَ لَمْ يَدَعْ مِنَ اَلْمَالِ مَا يُؤَدَّى عَنْهُ أُخِذَ وَلَدُهَا مِنْهَا وَ بِيعَتْ وَ أُدِّيَ ثَمَنُهَا" قُلْتُ فَتُبَاعُ فِيمَا سِوَى ذَلِكَ مِنَ اَلدَّيْنِ قَالَ "لاَ".
Umar ibn Yazid narrated from Abu Ibrahim (Imam Musa ibn Jafar Al-Kadhim (a.s)), who said: I said to him: "May I ask you a question?" Imam (a.s) replied: "Ask." I asked: "Why did Commander of the Faithful, peace be upon him, sell the mothers of children (Umm al-Walad)?" Imam (a.s) said: "To free them from slavery." I asked: "How was that?" Imam (a.s) said: "If a man purchased a bondwoman and she bore him a child, but he did not pay her price and did not leave enough wealth to pay for her, her child would be taken from her, and she would be sold to pay her price." I asked: "Is she sold for any other debt besides this?" Imam (a.s) said: "No."