Al-Kāfi - Volume 5 > Separation of Slaves from their Relatives (Is Not Permissible)
Hadith #1

1- عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ وَمُحَمَّدُ بْنُ إِسْمَاعِيلَ عَنِ الْفَضْلِ بْنِ شَاذَانَ عَنِ ابْنِ أَبِي عُمَيْرٍ عَنْ مُعَاوِيَةَ بْنِ عَمَّارٍ قَالَ سَمِعْتُ أَبَا عَبْدِ اللهِ (عَلَيْهِ السَّلام) يَقُولُ أُتِيَ رَسُولُ اللهِ (صَلَّى اللهُ عَلَيْهِ وَآلِه) بِسَبْيٍ مِنَ الْيَمَنِ فَلَمَّا بَلَغُوا الْجُحْفَةَ نَفِدَتْ نَفَقَاتُهُمْ فَبَاعُوا جَارِيَةً مِنَ السَّبْيِ كَانَتْ أُمُّهَا مَعَهُمْ فَلَمَّا قَدِمُوا عَلَى النَّبِيِّ (صَلَّى اللهُ عَلَيْهِ وَآلِه) سَمِعَ بُكَاءَهَا فَقَالَ مَا هَذِهِ الْبُكَاءُ فَقَالُوا يَا رَسُولَ اللهِ احْتَجْنَا إِلَى نَفَقَةٍ فَبِعْنَا ابْنَتَهَا فَبَعَثَ بِثَمَنِهَا فَأُتِيَ بِهَا وَقَالَ بِيعُوهُمَا جَمِيعاً أَوْ أَمْسِكُوهُمَا جَمِيعاً.

1. Ali ibn Ibrahim has narrated from his father from Ahmad ibn Muhammad from Muhammad ibn ‘Isma’il has narrated from al-Fadl ibn Shadhan from ibn abu ‘Umayr from Mu‘awiyah ibn ‘Ammar who has said the following: “I heard abu ‘Abd Allah, ‘Alayhi al-Salam, saying, ‘Once captives were brought to the Messenger of Allah, O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause, from Yemen. When they arrived at al-Juhfah, their supplies depleted and they sold one girl from the captives whose mother was with them. When they came to the Holy Prophet, he heard her crying and he asked, ‘What for is this crying?’ They replied, ‘O Messenger of Allah, our supplies depleted, so we sold her daughter.’ He (the Messenger of Allah) sent what was paid for her and brought her back. He (the Messenger of Allah) said, ‘You must sell them together or keep them together.’”