حَدَّثَنَا أَبُو الْوَلِيدِ ، حَدَّثَنَا شُعْبَةُ ، قَالَ : مَنْصُورٌ أَخْبَرَنِي، عَنْ إِبْرَاهِيمَ ، قَالَ :" الْمُعْتَقُ عَنْ دُبُرٍ مِنَ الثُّلُثِ "

Abu Al-Walid told us, Shu’bah told us, he said: Mansour told me, on the authority of Ibrahim, he said: “The one who is freed from the back of his head is from a third.”