وَالَّذِيْنَ يَرْمُوْنَ اَزْوَاجَهُمْ وَلَمْ يَكُنْ لَّهُمْ شُهَدَاۤءُ اِلَّآ اَنْفُسُهُمْ فَشَهَادَةُ اَحَدِهِمْ اَرْبَعُ شَهٰدٰتٍۢ بِاللّٰهِ ۙاِنَّهٗ لَمِنَ الصّٰدِقِيْنَ ( النور: ٦ )
Wallazeena yarmoona azwaajahum wa lam yakul lahum shuhadaaa'u illaaa anfusuhum fashahaadatu ahadihim arb'u shahaadaatim billaahi innahoo laminas saadiqeen (an-Nūr 24:6)
Sahih International:
And those who accuse their wives [of adultery] and have no witnesses except themselves – then the witness of one of them [shall be] four testimonies [swearing] by Allah that indeed, he is of the truthful. (An-Nur [24] : 6)
1 Mufti Taqi Usmani
Those who accuse their wives (of adultery) while they have no witnesses except their own selves, then the evidence of one of them would be to swear four oaths by Allah that he is truthful,