Qur'an 51:23 · Adh-Dhaariyat

فَوَرَبِّ ٱلسَّمَآءِ وَٱلْأَرْضِ إِنَّهُۥ لَحَقٌّۭ مِّثْلَ مَآ أَنَّكُمْ تَنطِقُونَ

(23) Then by the Lord of the heaven and earth, indeed, it is truth - just as [sure as] it is that you are speaking.