1 Kings 11:29-31

29And at that time, when Jeroboam went out of Jerusalem, the prophet Ahijah the Shilonite found him on the road. Now Ahijah had dressed himself in a new garment, and the two of them were alone in the open country.

30Then Ahijah laid hold of the new garment that was on him, and tore it into twelve pieces.

31And he said to Jeroboam, "Take for yourself ten pieces, for thus says the Lord, the God of Israel, 'Behold, I am about to tear the kingdom from the hand of Solomon and will give you ten tribes