O mankind, truly We have created you male and female, and have made you nations and tribes that ye may know one another. Truly the most noble of you, in the sight of God, is the most righteous among you [49:13].
For every community (of faith) We have appointed ways of worship, which they aught to observe. Hence, do not let those (who follow other ways) draw you into dispute on this score, but summon them to their Sustainer: for you are on the right way. And if they argue with you, say: God knows best what you are doing [22:67].
To each community among you We have prescribed a Law and a way of life. If God had so willed He would have made you a single people, but His plan is to test you in what He has given you: so strive as in a race in all virtues. The goal of you all is to God; it is He that will show you the truth of the matters in which you differ [5:48].
And the servants of the Infinitely Compassionate are those who walk on the earth in humility and when the ignorant accost them, they only reply “Peace!” [25:65].
Let there be no compulsion in religion. Truth stands out clearly from error; whoever rejects evil and has faith in God has grasped the most trustworthy, unfailing handhold. And God hears and knows all things. God is the Protector of those who have faith: from the depths of darkness He will lead them forth into light [2:256-257].
Someone said to the Prophet, ‘Pray to God against the idolators and curse them.’ The Prophet replied, ‘I have been sent to show mercy and have not been sent to curse.’ [words of the prophet muhammad, peace be upon him].