16:86An-Nahl

"On the Day of Resurrection a group of companions will come to me, but will be driven away from the Lake-Fount, and I will say, 'O Lord (those are) my companions!' It will be said, 'You have no knowledge as to what they innovated after you left; they turned apostate as renegades (reverted from Islam).

"You are setting up rivals (to Allah) and associating others (with Him). You say: 'Whatever Allah wills and you will,' and you say: 'By the Ka'bah.'" So the Prophet commanded them, if they wanted to swear an oath, to say: "By the Lord of the Ka'bah;" and to say: "Whatever Allah wills, then what you will."

During the lifetime of the Prophet (ﷺ) some people said, : O Allah's Messenger (ﷺ)! Shall we see our Lord on the Day of Resurrection?" The Prophet (ﷺ) said, "Yes; do you have any difficulty in seeing the sun at midday when it is bright and there is no cloud in the sky?" They replied, "No." He said, "Do you have any difficulty in seeing the moon on a full moon night when it is bright and there is no cloud in the sky?" They replied, "No." The Prophet (ﷺ) said, "(Similarly) you will have no difficulty in seeing Allah on the Day of Resurrection as you have no difficulty in seeing either of them. On the Day of Resurrection, a call-maker will announce, "Let every nation follow that which they used to worship." Then none of those who used to worship anything other than Allah like idols and other deities but will fall in Hell (Fire), till there will remain none but those who used to worship Allah, both those who were obedient (i.e. good) and those who were disobedient (i.e. bad) and the remaining party of the people of the Scripture. Then the Jews will be called upon and it will be said to them, 'Who do you use to worship?' They will say, 'We used to worship Ezra, the son of Allah.' It will be said to them, 'You are liars, for Allah has never taken anyone as a wife or a son. What do you want now?' They will say, 'O our Lord! We are thirsty, so give us something to drink.' They will be directed and addressed thus, 'Will you drink,' whereupon they will be gathered unto Hell (Fire) which will look like a mirage whose different sides will be destroying each other. Then they will fall into the Fire. Afterwards the Christians will be called upon and it will be said to them, 'Who do you use to worship?' They will say, 'We used to worship Jesus, the son of Allah.' It will be said to them, 'You are liars, for Allah has never taken anyone as a wife or a son,' Then it will be said to them, 'What do you want?' They will say what the former people have said. Then, when there remain (in the gathering) none but those who used to worship Allah (Alone, the real Lord of the Worlds) whether they were obedient or disobedient. Then (Allah) the Lord of the worlds will come to them in a shape nearest to the picture they had in their minds about Him. It will be said, 'What are you waiting for?' Every nation have followed what they used to worship.' They will reply, 'We left the people in the world when we were in great need of them and we did not take them as friends. Now we are waiting for our Lord Whom we used to worship.' Allah will say, 'I am your Lord.' They will say twice or thrice, 'We do not worship any besides Allah.' "

Some persons from amongst my associates would turn to my Cistern; when I would see them and they would be presented to me, they would be detained in the way while coming to me. I would say: My Lord, they are my companions, they are my companions, and it would be said to me: You don't know what innovations they made after you.

" Those to whom they call upon, themselves seek the means or access to their Lord as to whoever of them becomes nearest" (xvii. 57) that it related to a party of Jinn who were being worshipped and they embraced Islam but those who worshipped them kept on worshipping them (though the Jinn whom the misguided people worshipped had become Muslims). It was then that this verse was revealed.