Can the mother ask the father for payment in return for breastfeeding her children from him?

No File Exists
Check below answers in case you are looking for other related questions:
If he was breastfed by a woman, does her son become a mahram to his daughter?
Can he marry a girl whose maternal uncle was breastfed with his oldest brother?

No File Exists
Related Answers:
He was breastfed by the wife of his paternal uncle; are the daughters of his paternal uncle from his other wife forbidden to him for marriage?
Breastfeeding a child during pregnancy
Taking hormones to stimulate milk production in the woman: Will she become a mother through breastfeeding thereby and will her husband become a father?
If he was breastfed by a woman, does her son become a mahram to his daughter?
Can he marry a girl whose maternal uncle was breastfed with his oldest brother?

Recommended answers for you:
Raising the hands during prayer
Is purity essential for reading Qur’aan from one’s mobile phone?
Rulings to do with abortion
Sujood Ul-Sahw if in doubt while praying
The Hadeeth About Saying “Allahumma ajirni min al-nar” Seven Times