If I perform Salaat alone and someone joins me, what is the state of his Salaat?

Answer

If the one who joins the solitary musalli will be performing the same Fardh Salaat, then his Salaat will be valid. This is according to the Hanafi Math-hab which we follow. According to the Shaafi' Math-hab, regardless of what intention the first musalli had, a person may follow with his own intention.