Al-Mâ’idah 5:108
ذَٰلِكَ أَدْنَىٰ أَن يَأْتُوا بِالشَّهَادَةِ عَلَىٰ وَجْهِهَا أَوْ يَخَافُوا أَن تُرَدَّ أَيْمَانٌ بَعْدَ أَيْمَانِهِمْ ۗ وَاتَّقُوا اللَّهَ وَاسْمَعُوا ۗ وَاللَّهُ لَا يَهْدِي الْقَوْمَ الْفَاسِقِينَ ١٠٨
Thalika adna an yatoo bialshshahadati AAala wajhiha aw yakhafoo an turadda aymanun baAAda aymanihim waittaqoo Allaha waismaAAoo waAllahu la yahdee alqawma alfasiqeena
This (method) is closer to the mode of making people give their evidence true to the facts, or they feel afraid that (in the case of false testimony,) following their oaths, (equally solemn) oaths will be turned (towards closer heirs). So fear Allah with perseverance and always listen (attentively to the commandments of Allah). And Allah does not guide the people who disobey and defy. (5:108)