At-Taubah - 9:65

وَلَئِن سَأَلْتَهُمْ لَيَقُولُنَّ إِنَّمَا كُنَّا نَخُوضُ وَنَلْعَبُ قُلْ أَبِاللّهِ وَآيَاتِهِ وَرَسُولِهِ كُنتُمْ تَسْتَهْزِئُونَ
[9:65]
And if you should question them, they would certainly say: We were only idly discoursing and sporting. Say: Was it at Allah and His communications and His Messenger that you mocked?
If thou dost question them, they declare (with emphasis): "We were only talking idly and in play." Say: "Was it at Allah, and His Signs, and His Messenger, that ye 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?