“O Messenger of Allah! What will remove the responsibility of the foster relationship from me?” So he said: “A Ghurrah: a male slave or a female slave.”  

أَنَّهُ سَأَلَ النَّبِيَّ ﷺ فَقَالَ يَا رَسُولَ اللَّهِ مَا يُذْهِبُ عَنِّي مَذَمَّةَ الرَّضَاعِ فَقَالَ غُرَّةٌ عَبْدٌ أَوْ أَمَةٌ