Rabia I think your situation is completely different than OPs. The money your husband is giving is to help his family with specific things and you also have an end in sight (ie. once his 3rd sister gets married next year, the savings will start for you). OP is not in the same spot.
I’m posting a portion from a post OP wrote in her previous thread about this. This is not only about helping elderly parents/sibling who NEED money. Her husband seems awful in managing money in general. He doesn’t seem to realize that he also has a responsibility to have a plan for his wife and future children.