865. hadíth
وَ قَالَ أَبُو عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: فِي رَجُلٍ أَعْتَقَ مَمْلُوكَهُ عَلَى أَنْ يُزَوِّجَهُ اِبْنَتَهُ وَ شَرَطَ عَلَيْهِ إِنْ تَزَوَّجَ أَوْ تَسَرَّى عَلَيْهَا فَعَلَيْهِ كَذَا وَ كَذَا قَالَ "يَجُوزُ".
Abu Abdullah (a.s), was asked about a man who freed his slave on the condition that he marries his daughter and stipulated that if he marries another woman or takes another concubine, he would be liable for a specific amount. Imam (a.s) said: "It is permissible."