An-Naml 27:49

قَالُواْ تَقَاسَمُواْ بِٱللَّهِ لَنُبَيِّتَنَّهُۥ وَأَهۡلَهُۥ ثُمَّ لَنَقُولَنَّ لِوَلِيِّهِۦ مَا شَهِدۡنَا مَهۡلِكَ أَهۡلِهِۦ وَإِنَّا لَصَٰدِقُونَ 49

They said, "Take a mutual oath by Allah that we will kill him by night, he and his family. Then we will say to his executor, 'We did not witness the destruction of his family, and indeed, we are truthful