It is narrated from Sayyiduna Abu Dharr (may Allah be pleased with him), he says: I was riding on a donkey with the Noble Prophet (peace and blessings be upon him), and on that donkey was a blanket (which is placed under the saddle of the animal). It was the time of sunset. The Prophet (peace and blessings be upon him) said to me: Abu Dharr! Do you know where this sun sets? I said: Allah and His Messenger know best. The Prophet (peace and blessings be upon him) said: It sets in a spring of muddy water, then it continues on until it prostrates beneath the Throne of Allah Almighty. When its time to rise comes, Allah Almighty gives it permission to rise, and it goes and rises. But when Allah Almighty wills that it should rise from the west, Allah Almighty will stop it. The sun will say: O Lord! My journey is very long. Then Allah Almighty will say to it: Rise from where you have set. That will be a time when believing will not benefit anyone.