Al-Mutaffifin • BN-TAFSEER-IBN-E-KASEER
﴿ إِنَّ ٱلَّذِينَ أَجْرَمُوا۟ كَانُوا۟ مِنَ ٱلَّذِينَ ءَامَنُوا۟ يَضْحَكُونَ ﴾
“BEHOLD, those who have abandoned themselves to sin are wont to laugh at such as have attained to faith”
Please check ayah 83:36 for complete tafsir.