6:77
When he saw the moon rising he said, "This (is) my Lord." But when it set he said, "If (does) not guide me my Lord, I will surely be among the people who went astray."

6:78
When he saw the sun rising he said, "This (is) my Lord, this (is) greater." But when it set, he said, "O my people! Indeed, I am free of what you associate (with Allah)."