عَن الْحسن عَن سَمُرَة عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «من ملك ذَا رحم محرم فَهُوَ حُرٌّ» . رَوَاهُ التِّرْمِذِيُّ وَأَبُو دَاوُدَ وَابْنُ مَاجَه

‘Amr b. Shu'aib, on his father's authority, told that this grandfather reported the Prophet as saying, “A slave who has entered into an agreement to purchase his freedom is a slave as long as a dirham of the agreed price remains to be paid." Abu Dawud transmitted it.