الإمام محمد الباقر (عليه السَّلام):
استَرضِعْ لِولدِكَ بِلَبَنِ الحِسانِ، و إيّاكَ و القِباحَ؛ فإنّ اللَّبَنَ قد يُعدِي.
Imam Muhammad al-Baqir (as):
Get beautiful wet-nurses to suckle your child and keep away from ugly ones, for verily the milk has an effect [on the child].
Source:
al-Kāfī
Vol6
P44
Tahdhīb al-Aḥkām
Vol8
P110