﴿ وَإِذَا ٱنقَلَبُوٓا۟ إِلَىٰٓ أَهْلِهِمُ ٱنقَلَبُوا۟ فَكِهِينَ ﴾

“and whenever they return to people of their own kind, they return full of jests;”

(And when they) the disbelievers (returned to their own folk, they returned jesting) they returned happy with their idolatry and mocking the believers;