Surah As-Sajdah (The Prostration), Verse 12

وَلَوْ تَرٰۤی اِذِ الْمُجْرِمُوْنَ نَاكِسُوْا رُءُوْسِهِمْ عِنْدَ رَبِّهِمْ رَبَّنَاۤ اَبْصَرْنَا وَسَمِعْنَا فَارْجِعْنَا نَعْمَلْ صَالِحًا اِنَّا مُوْقِنُوْنَ ۟

Wa law taraaa izil mujrimoona naakisoo ru'oosihim 'inda rabbihim rabbanaaa absarnaa wa sami'naa farji'naa na'mal saalihan innaa mooqinoon

“If only thou couldst see when the guilty ones will bend low their heads before their Lord, (saying:) "Our Lord! We have seen and we have heard: Now then send us back (to the world): we will work righteousness: for we do indeed (now) believe."”

Quran 32:12 (Yusuf Ali Translation)