Warning about an error that occurs in gatherings regarding the manner of offering the greeting.

The Shaykh : In any case, I am reminding some of our brothers who are present. When they entered, they were giving a specific greeting to each individual sitting there, or to many of them. So when he shakes hands, he says, "Peace be upon you, peace be upon you," and so on. What I want to remind you of—and the reminder benefits the believers—is that the Sunnah, when one enters a gathering, is to offer a general greeting to those present by saying, "Peace be upon you and the mercy of Allah." If it is possible for him to shake hands with each individual one by one, that is undoubtedly more complete and perfect for him. But if it is not possible, such as if the gathering is large and crowded, then in this case he should suffice with offering the greeting. However, if he follows his greeting by shaking hands with every person sitting there, saying "Peace be upon you, peace be upon you, peace be upon you," that is in no way part of the Sunnah. This is a modern innovation that the past centuries did not know. I do not say only the Salafi centuries, but including those with Salafi and Khalafi elements, they did not know such a handshake except in the present century. This is a reminder, and the reminder benefits the believers. This is before what may come to any of you in the form of a question.