ذَٰلِكَ أَدْنَىٰٓ أَن يَأْتُوا۟ بِٱلشَّهَـٰدَةِ عَلَىٰ وَجْهِهَآ أَوْ يَخَافُوٓا۟ أَن تُرَدَّ أَيْمَـٰنٌۢ بَعْدَ أَيْمَـٰنِهِمْ ۗ وَٱتَّقُوا۟ ٱللَّهَ وَٱسْمَعُوا۟ ۗ وَٱللَّهُ لَا يَهْدِى ٱلْقَوْمَ ٱلْفَـٰسِقِينَ
dhālika adnā an yatū bil-shahādati ʿalā wajhihā aw yakhāfū an turadda aymānun baʿda aymānihim wa-ittaqū l-laha wa-is'maʿū wal-lahu lā yahdī l-qawma l-fāsiqīna
That is more likely that they will give testimony according to its [true] objective, or [at least] they would fear that [other] oaths might be taken after their oaths. And fear Allāh and listen [i.e., obey Him]; and Allāh does not guide the defiantly disobedient people.
— Saheeh International
that will make it more likely they will give true and proper testimony, or fear that their oaths might be refuted by others afterwards. Be mindful of God and listen; God does not guide those who break His laws.
— M. A. S. Abdel Haleem
That should make it closer (to the fact) that their testimony would be in its true shape (and thus accepted), or else they would fear that (other) oaths would be admitted after their oaths. And fear Allâh and listen (with obedience to Him). And Allâh guides not the people who are Al-Fâsiqûn (the rebellious and disobedient).
— Muhammad Muhsin Khan & Muhammad Taqi-ud-Din al-Hilali