2 Samuel 20:9

Joab took Amasa by the beard As the manner of ancient times was when they saluted one another, and, it appears, is still a custom among some of the eastern people, who take one another by the chin or the beard when they would give a hearty salute. Thevenot says it is often done among the Turks, although at the same time he assures us it is a great affront to take one by the beard on any other account than to kiss him.