﴿ فَذَرْهُمْ يَخُوضُوا۟ وَيَلْعَبُوا۟ حَتَّىٰ يُلَٰقُوا۟ يَوْمَهُمُ ٱلَّذِى يُوعَدُونَ ﴾

“But leave them to indulge in idle talk and play [with words] until they face that [Judgment] Day of theirs which they have been promised:”

Please check ayah 43:89 for complete tafsir.