no, adams children believed, those who didnt believe in noah were wiped out and only believers left. when jesus returns to kill the antichrist he and imam mahdi will rule the world peacefully, all will become believers. BUT, thats a small amount compared to adding all the people of the world who...
hadiths actually are reliable, its not like you just follow whatever someone makes up. the hadiths are a compilation of the prophets sayings and actions. he had companions who were with him and its not like they suddenly died or soemthing. they were verified through them. and then narrated by a...