Sealed Hearts
Among them are those who listen to you, but when they leave, they say to others, “What did he just say?” These are the ones whose hearts Allah has sealed, they follow only their desires.
47:16Among them are some who give ear unto thee (Muhammad) till, when they go forth from thy presence they say unto those who have been given knowledge: What was that he said just now? Those are they whose hearts Allah hath sealed, and they follow their own lusts.