2:233
And the mothers shall suckle their children (for) two years complete, for whoever wishes to complete the suckling. And upon the father (on) him (is) their provision and their clothing in a fair manner. Not is burdened any soul except its capacity. Not made to suffer (the) mother because of her child and not (the) father (be) because of his child. And on the heirs (is a duty) like that. Then if they both desire weaning through mutual consent of both of them and consultation, then no blame on both of them. And if you want to ask another women to suckle your child then (there is) no blame on you, when you pay what you give in a fair manner. And fear Allah and know that Allah of what you do (is) All-Seer.