And when Ibrahim said: My Lord! show me how Thou givest life to the dead, He said: What! and do you not believe? He said: Yes, but that my heart may be at ease. He said: Then take four of the birds, then train them to follow you, then place on every mountain a part of them, then call them, they will come to you flying; and know that Allah is Mighty, Wise.

Certainly Allah had shown to His Messenger the vision with truth: you shall most certainly enter the Sacred Mosque, if Allah pleases, in security, (some) having their heads shaved and (others) having their hair cut, you shall not fear, but He knows what you do not know, so He brought about a near victory before that.