Say, "Is it other than Allah I should take as a protector, Creator of the heavens and the earth, while it is He who feeds and is not fed?" Say, [O Muhammad], "Indeed, I have been commanded to be the first [among you] who submit [to Allah] and [was commanded], 'Do not ever be of the polytheists.' "
And if Allah should touch you with adversity, there is no remover of it except Him. And if He touches you with good - then He is over all things competent.
Say, "What thing is greatest in testimony?" Say, "Allah is witness between me and you. And this Qur'an was revealed to me that I may warn you thereby and whomever it reaches. Do you [truly] testify that with Allah there are other deities?" Say, "I will not testify [with you]." Say, "Indeed, He is but one God, and indeed, I am free of what you associate [with Him]."
Those to whom We have given the Scripture recognize it as they recognize their [own] sons. Those who will lose themselves [in the Hereafter] do not believe.
And [mention, O Muhammad], the Day We will gather them all together; then We will say to those who associated others with Allah, "Where are your 'partners' that you used to claim [with Him]?"
And among them are those who listen to you, but We have placed over their hearts coverings, lest they understand it, and in their ears deafness. And if they should see every sign, they will not believe in it. Even when they come to you arguing with you, those who disbelieve say, "This is not but legends of the former peoples."
If you could but see when they are made to stand before the Fire and will say, "Oh, would that we could be returned [to life on earth] and not deny the signs of our Lord and be among the believers."
But what they concealed before has [now] appeared to them. And even if they were returned, they would return to that which they were forbidden; and indeed, they are liars.
If you could but see when they will be made to stand before their Lord. He will say, "Is this not the truth?" They will say, "Yes, by our Lord." He will [then] say, "So taste the punishment because you used to disbelieve."
Those will have lost who deny the meeting with Allah, until when the Hour [of resurrection] comes upon them unexpectedly, they will say, "Oh, [how great is] our regret over what we neglected concerning it," while they bear their burdens on their backs. Unquestionably, evil is that which they bear.
We know that you, [O Muhammad], are saddened by what they say. And indeed, they do not call you untruthful, but it is the verses of Allah that the wrongdoers reject.
And certainly were messengers denied before you, but they were patient over [the effects of] denial, and they were harmed until Our victory came to them. And none can alter the words of Allah. And there has certainly come to you some information about the [previous] messengers.
And if their evasion is difficult for you, then if you are able to seek a tunnel into the earth or a stairway into the sky to bring them a sign, [then do so]. But if Allah had willed, He would have united them upon guidance. So never be of the ignorant.