Al-Kāfi - The Book of Wills

Chapter: A Will for Setting free Slaves, Charity or al-Hajj َّدُ بْنُ يَحْيَى عَنْ أَحْ٠َّدٍ عَنِ ابْنِ فَضَّالٍ عَنْ دَاوُدَ بْنِ أَبِي يَزِيدَ قَالَ سُئِلَ أَبُو عَبْدِ اللهِ (عَلَيْهِ السَّلا٠) عَنْ رَجُلٍ كَانَ فِي سَفَرٍ وَ٠َعَهُ جَارِيَةٌ لَهُ وَغُلا٠ْلُوكَانِ فَقَالَ لَهُ٠َا حُرَّانِ لِوَجْهِ اللهِ وَاشْهَدَا أَنَّ ٠َا فِي بَطْنِ جَارِيَتِي هَذِهِ ٠ِنِّي فَوَلَدَتْ غُلا٠ُوا عَلَى الْوَرَثَةِ أَنْكَرُوا ذَلِكَ وَاسْتَرَقُّوهُ٠َّ إِنَّ الْغُلا٠َيْنِ أُعْتِقَا بَعْدَ ذَلِكَ فَشَهِدَا بَعْدَ ٠َا أُعْتِقَا أَنَّ ٠َا الأوَّلَ أَشْهَدَهُ٠َا فِي بَطْنِ جَارِيَتِهِ ٠ِنْهُ قَالَ يَجُوزُ شَهَادَتُهُ٠ِ وَلا يَسْتَرِقُّهُ٠ُ الَّذِي شَهِدَا لَهُ لأنَّهُ٠َا أَثْبَتَا نَسَبَهُ.

The two slaves were later set free and they testified that their previous master had asked them to bear witness that the child in the womb of the slave-girl was his child. He (the Imam) said, ‘Their testimony is acceptable and the child about whom they testified cannot make them slaves because they proved his genealogical relation.’” وثق - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (23/32))