The Mesnevi

Husām once made his obeisance to Jelāl, and related to him that, when the disciples recited the poetry of the Mesnevī, and became entranced, he had himself seen a company of invisible ones, armed with clubs and scimitars, keeping guard over them. If any one did not listen to those sacred words with reverence and believing, the clubs and swords were brought into play, and he was hurled into the pit of hell-fire. Jelāl confirmed, as being a fact, all Husām had related.