But as for the proof that the world has had an origin, know that the world consists of bodies and accidents only, as has preceded. And the accidents, like motion and rest, are originated, because you observe their changing from existence to non-existence and from non-existence to existence. You see it is so in the motion of Zayd. His motion is lacking if he is at rest; and his rest is lacking if he is in motion. Then his rest, which comes after his motion, exists after that it has been lacking through motion; and his motion, which comes after his rest, exists after that it has been lacking through his rest. And existence after non-existence means having an origin. And bodies are inseparable from attributes, because they are never free from either motion or rest. And whatever is inseparable from a thing having origin must have origin; _i.e._, must be an entity after non-existence. So, the bodies are originated also, like the attributes. The proof, in short, is that you say: Bodies are inseparable from attributes and these have an origin; everything that is inseparable from that which has an origin, itself has an origin; therefore, bodies have an origin. And the origin of the two things—bodies and attributes—that is their existence after non-existence, is a proof of the existence of Him Most High, because everything having an origin must have an originator, and there is no originator of the world save God Most High alone, who has no partner (_sharik_) as shall be shown in the proof of His Unity. This, then, is the general proof, a knowledge of which is incumbent upon every _mukallaf_, male and female, according to the opinion of Ibn al-Arabi and as-Sanusi, who hold those who do not know it to be unbelievers. So, beware lest there be a contradiction in your faith.