What is the ruling on asking vendors about the source of meat, and is this considered an act of excessive scrupulosity, and what is the ruling on imported meat and poultry in Egypt if "halal" is written on it?

The basic principle regarding meat slaughtered by Muslims or People of the Book is that it is permissible, unless there is evidence to the contrary, and there is no need to delve deeply into questioning it. As for imported meat, its permissibility cannot be affirmed until its source is known. Merely writing "halal (definition)" on it is not sufficient; rather, it is necessary to ascertain that it was slaughtered according to Islamic law. These rulings apply generally to both red meat and poultry.