And mention-O Messenger-the request of Abraham from his Lord that He show him the nature of resurrection, so Allah said to him: "Have you not believed?" He said: "Yes, but I ask that to increase certainty upon my certainty," He said: "Then take four of the birds then join them to you and sacrifice them and cut them, then place on every mountain of them a part, then call them they will come to you racing." So Abraham, peace be upon him, called, and behold every part returns to its place, and behold they come racing. And know that Allah is Almighty, nothing overcomes Him, All-Wise in His words, His actions, His law, and His decree.