Surah Al-Maeda Verse 108 - English Translation by Mohammad Shafi
Surah Al-Maedaذَٰلِكَ أَدۡنَىٰٓ أَن يَأۡتُواْ بِٱلشَّهَٰدَةِ عَلَىٰ وَجۡهِهَآ أَوۡ يَخَافُوٓاْ أَن تُرَدَّ أَيۡمَٰنُۢ بَعۡدَ أَيۡمَٰنِهِمۡۗ وَٱتَّقُواْ ٱللَّهَ وَٱسۡمَعُواْۗ وَٱللَّهُ لَا يَهۡدِي ٱلۡقَوۡمَ ٱلۡفَٰسِقِينَ
That should make the testimony more transparent. Or else, they may fear rejection of other testimonies after theirs. And fear Allah and listen. And Allah does not guide the transgressing people