From the first Book of Prophet Moses(Musa)(Alaihi Salaam/Peace be upon him)GENESIS:

16:10 And the angel of the LORD said unto her, I will multiply thy seed exceedingly, that it shall not be numbered for multitude.

16:11 And the angel of the LORD said unto her, Behold, thou art with child and shalt bear a son, and shalt call his name Ishmael; because the LORD hath heard thy affliction.

16:12 And he will be a wild man; his hand will be against every man, and every man's hand against him; and he shall dwell in the presence of all his brethren.

17:18 And Abraham said unto God, O that Ishmael might live before thee!

17:20 And as for Ishmael, I have heard thee: Behold, I have blessed him, and will make him fruitful, and will multiply him exceedingly; twelve princes shall he beget, and I will make him a great nation.

17:23 And Abraham took Ishmael his son, and all that were born in his house, and all that were bought with his money, every male among the men of Abraham's house; and circumcised the flesh of their foreskin in the selfsame day, as God had said unto him.

17:24 And Abraham was ninety years old and nine, when he was circumcised in the flesh of his foreskin.

17:25 And Ishmael his son was thirteen years old, when he was circumcised in the flesh of his foreskin.

17:26 In the selfsame day was Abraham circumcised, and Ishmael his son.

17:27 And all the men of his house, born in the house, and bought with money of the stranger, were circumcised with him.

21:17 And God heard the voice of the lad; and the angel of God called to Hagar out of heaven, and said unto her, What aileth thee, Hagar? fear not; for God hath heard the voice of the lad where he is.

21:18 Arise, lift up the lad, and hold him in thine hand; for I will make him a great nation.

21:19 And God opened her eyes, and she saw a well of water; and she went, and filled the bottle with water, and gave the lad drink.

Islamic Source:
From Sahih Bukhari:

Volume 9, Book 89, Number 329:

Narrated Jabir bin Samura:

I heard the Prophet saying, "There will be twelve Muslim rulers (who will rule all the Islamic world)." He then said a sentence which I did not hear. My father said, "All of them (those rulers) will be from Quraish."

From Sahih Muslim:

Book 36, Number 4266:

Narrated Jabir ibn Samurah:

The Prophet (peace_be_upon_him) said: The religion will continue to be established till there are twelve caliphs over you, and the whole community will agree on each of them. I then heard from the Prophet (peace_be_upon_him) some remarks which I could not understand. I asked my father: What is he saying: He said: all of them will belong to Quraysh.