Surah Hud, ayah 121

وَقُل لِّلَّذِينَ لَا يُؤۡمِنُونَ ٱعۡمَلُواْ عَلَىٰ مَكَانَتِكُمۡ إِنَّا عَٰمِلُونَ ١٢١

Waqul lilladhīna lā yu'minūna'malū 'alā makānatikum innā 'āmilūn

And say to those who do not believe, "Work according to your position; indeed, we are working.