لَّوْلَا جَآءُو عَلَيْهِ بِأَرْبَعَةِ شُهَدَآءَ ۚ فَإِذْ لَمْ يَأْتُوا۟ بِٱلشُّهَدَآءِ فَأُو۟لَـٰٓئِكَ عِندَ ٱللَّهِ هُمُ ٱلْكَـٰذِبُونَ
Law laa jaaa'oo 'alaihi bi-arba'ati shuhadaaa'; fa iz lam yaatoo bishshuhadaaa'i fa ulaaa 'ika 'indal laahi humul kaaziboon
And why did the accusers not bring four witnesses to it? If they cannot produce such witnesses, they are the liars in God’s eyes.
Why did they not bring four witnesses to support it? Since they did not produce the witnesses, before God it is they who are the liars.