At-Tawba 9:65

If you question them, they will surely say, “We were only indulging in idle talk and playing.” Say, “Was it Allah, His verses and His Messenger that you were mocking[58]?”

[58] ‘Abdullāh ibn ‘Umar (رضي الله عنهما) reported: “During the Tabuk Expedition a man said in a gathering: “I have not seen anyone who is more gluttonous, lying and cowardly than these reciters of ours!” A man in the same gathering replied to him: “Liar! You are indeed a hypocrite! I shall tell the Messenger of Allah (ﷺ)!” When the news reached the Messenger (ﷺ), verses from the Qur’an came down regarding the incident.” The narrator continues: “I saw him clinging to the belly strap of the Messenger’s (ﷺ) she-camel, saying: “Messenger of Allah! We were only chit-chatting and passing time!” While the Messenger of Allah (ﷺ) was reciting: “Were you mocking of Allah, His Signs, and His Messenger”. [cf. Ibn Abī Hātim, al-Tabarī, al-Shinqītī]

And if you ask them, they will surely say, "We were only conversing and playing." Say, "Is it Allāh and His verses and His Messenger that you were mocking?"

65. If you ask them (about this), they declare: "We were only talking idly and joking." Say: "Was it at Allâh (عز وجل), and His Ayât (proofs, evidence, verses, lessons, signs, revelations) and His Messenger (صلى الله عليه وسلم) that you were mocking?"

And if thou ask them (O Muhammad) they will say: We did but talk and jest. Say: Was it at Allah and His revelations and His messenger that ye did scoff?