"I narrated heard the Messenger of Allah ﷺ saying: 'Whoever seperates a mother from her child, Allah seperates him and his most beloved on the Day of Judgement.'"  

سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ مَنْ فَرَّقَ بَيْنَ الْوَالِدَةِ وَوَلَدِهَا فَرَّقَ اللَّهُ بَيْنَهُ وَبَيْنَ أَحِبَّتِهِ يَوْمَ الْقِيَامَةِ  

"The Messenger of Allah ﷺ gave me two boys who were brothers, so I sold one of them, and the Messenger of Allah ﷺ said to me: 'O, 'Ali! What happened to your boy?' So I informed him, and he said: 'Return him, return him.'"  

وَهَبَ لِي رَسُولُ اللَّهِ ﷺ غُلاَمَيْنِ أَخَوَيْنِ فَبِعْتُ أَحَدَهُمَا فَقَالَ لِي رَسُولُ اللَّهِ ﷺ يَا عَلِيُّ مَا فَعَلَ غُلاَمُكَ فَأَخْبَرْتُهُ فَقَالَ رُدَّهُ رُدَّهُ