Breastfeeding

Period of breastfeeding

Q: A hadith states لا رضاغ بعد الفصال

Hidaya mentions that the growth from the milk stops after the child's nutrition is changed. If a child was weaned at 8 months due to a 2nd pregnancy, then the mother gave birth and is feeding the 2nd child, can she feed the first child expressed milk?

The child is already weaned, drinking goats milk in abundance. Mothers milk will definitely be more nutritious, but does the hadith mean that it will be prohibited to feed the child who was previously weaned even though it is less than 2 years old ?

Marrying one's foster niece

Q: There are two sisters (Amna and Zulaika) and their mother died. After the death of their mother their father got married to Nasreen. The step mother of Amna and Zulaika (Nasreen) breastfed Amna's son Taimoor her milk. Can Taimoor perform nikah with his cousin who is the daughter of Zulaika? 

Doubts regarding foster relationship

Q: Three years ago I heard my aunt saying that she once gave me drink from my cousins bottle and I think she turned to me and said "your cousin is your foster sister " im not sure if I heard that other if that's just in my head..my aunt said that infront of my baby brother who was breastfeeding at that time .. now I asked my aunt about the matter she said "it must of been cow milk or something "but I fear she might be forgetting I really don't want any problems in the hereafter so under the most strict islamic law am i allowed to marry my cousin? I have doubt I still think there is a chance I could of drank her breast milk and she is forgetting