﴿ وَقُل لِّلَّذِينَ لَا يُؤْمِنُونَ ٱعْمَلُوا۟ عَلَىٰ مَكَانَتِكُمْ إِنَّا عَٰمِلُونَ ﴾

“And say unto those who will not believe: "Do anything that may be within your power, [while] we, behold, shall labour [in God's way];”

Please check ayah 11:122 for complete tafsir.