﴿ وَلَا تَتَّخِذُوٓا۟ أَيْمَٰنَكُمْ دَخَلًۢا بَيْنَكُمْ فَتَزِلَّ قَدَمٌۢ بَعْدَ ثُبُوتِهَا وَتَذُوقُوا۟ ٱلسُّوٓءَ بِمَا صَدَدتُّمْ عَن سَبِيلِ ٱللَّهِ ۖ وَلَكُمْ عَذَابٌ عَظِيمٌۭ ﴾

“And do not use your oaths as a means of deceiving one another-or else [your] foot will slip after having been firm, and then you will have to taste the evil [consequences] of your having turned away from the path of God, with tremendous suffering awaiting you [in the life to come].”

Please check ayah 16:96 for complete tafsir.