bottle

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

Drinking from a bottle

Q: Did the Prophet (Sallallahu Alaihi Wasallam) say that if you drink from a bottle or a container, you will get poor. e.g. If I am the only one going to be drinking from a 2 liter bottle and no one is going to be drinking after me, is this a hadith?