Sayyiduna Jabir bin Abdullah (may Allah be pleased with them both) narrates: I heard the Prophet Muhammad (peace and blessings be upon him) say, "Whoever good is done to, and he only expresses gratitude by praising (the doer), then he has shown thankfulness. And whoever conceals it, he is ungrateful. And whoever adorns himself with something false to appear (as such), he is like one who wears two garments of falsehood."