3472 - وَ سَأَلَ عَلِيُّ بْنُ جَعْفَرٍ أَخَاهُ مُوسَى بْنَ جَعْفَرٍ عَلَيْهِمَا اَلسَّلاَمُ : عَنْ رَجُلٍ كَاتَبَ مَمْلُوكَهُ فَقَالَ بَعْدَ مَا كَاتَبَهُ هَبْ لِي بَعْضَ مُكَاتَبَتِي وَ أُعَجِّلَ لَكَ مُكَاتَبَتِي أَ يَحِلُّ ذَلِكَ قَالَ "إِنْ كَانَ هِبَةً فَلاَ بَأْسَ وَ إِذَا قَالَ تَحُطُّهُ عَنِّي وَ أُعَجِّلُ لَكَ فَلاَ يَصْلُحُ".
Hadith.3472 - Ali ibn Ja'far asked his brother Imam Musa ibn Jafar Al-Kadhim 
, about a man who entered into a mukataba (a contract of emancipation) with his slave.
After the contract, the slave said: "Forgive me part of my payments, and I will pay off the remainder early."
Imam said: "If it is given as a gift, then there is no harm. But if he says, 'Reduce my payment in exchange for early payment,' then it is not permissible."
