Al-Baqarah 2:138

Sibghata Allahi waman ahsanumina Allahi sibghatan wanahnu lahu AAabidoon

[And say, "Ours is] the religion of Allāh. And who is better than Allāh in [ordaining] religion? And we are worshippers of Him."

(We dye ourselves with) the colouring of Allah! For who is better in colouring than Allah? We are to worship none but Him.