Hadith 10:1480
Abu Bakr narrated to us, he said: Waki’ narrated to us, he said: Sufyan narrated to us: If the child does not take [milk] from other than her, and it is feared for him, she is compelled.
حدثنا أبو بكر قال نا وكيع قال نا سفيان إذا كان الولد لا يأخذ من غيرها وخشي عليه جبرت