Hud - 11:121

وَقُل لِّلَّذِينَ لاَ يُؤْمِنُونَ اعْمَلُواْ عَلَى مَكَانَتِكُمْ إِنَّا عَامِلُونَ
[11:121]
And say to those who do not believe: Act according to your state; surely we too are acting.
Say to those who do not believe: "Do what ever ye can: We shall do our part;
And say unto those who believe not: Act according to your power. Lo! We (too) are acting.