Sahih Muslim | Book 37 | Hadith Number 6635

Narrated by 'Umar b. Khattab
'Umar b. Khattab reported that there were brought some prisoners to Allah's Messenger (may peace be upon him) amongst whom there was also a woman, who was searching (for someone) and when she found a child amongst the prisoners, she took hold of it, pressed it against her chest and provided it suck. Thereupon Allah's Messenger (may peace be upon him) said: Do you think this woman would ever afford to throw her child

in the Fire? We said: By Allah, so far as it lies in her power, she would never throw the child in Fire.' Thereupon Allah's Messenger (may peace be upon him) said: Allah is more kind to His servants than this woman is to her child.