Quran 28:55 from Surah Al-Qasas on Divine Marvels.
وَإِذَا سَمِعُواْ ٱللَّغۡوَ أَعۡرَضُواْ عَنۡهُ وَقَالُواْ لَنَآ أَعۡمَٰلُنَا وَلَكُمۡ أَعۡمَٰلُكُمۡ سَلَٰمٌ عَلَيۡكُمۡ لَا نَبۡتَغِي ٱلۡجَٰهِلِينَ
English translation: And when they hear vain talk they turn away from it and say For us our deeds and for you your deeds Peace (be) on you not we seek the ignorant
Transliteration: wa-idha sami'u al-laghwa a'radu anhu waqalu lana a'maluna walakum a'malukum salamun alaykum la nabtaghi al-jahilina