I understand your point now. You are asking about the method of Tablighi Jamaat or similar groups, where they encourage people to go out in qafila and call others in that specific organized way.I mean that, a group of people can come to the masjid and tell people to move in the path of Allah but some people say that the way they do, it's not the way swahabas did it that's wat I was meaning, insha Allah