And if their turning away is hard on you, then if you can seek an opening (to go down) into the earth or a ladder (to ascend up) to heaven so that you should bring them a sign and if Allah had pleased He would certainly have gathered them all on guidance, therefore be not of the ignorant.

And had those who are unjust all that is in the earth and the like of it with it, they would certainly offer it as ransom (to be saved) from the evil of the punishment on the day of resurrection; and what they never thought of shall become plain to them from Allah.