Islam inherited the tradition of [[http://sebomenoi.org/index.php/7_Mathaani 7 Mathaani]] from the [[Sabians]]. The word Mesani is translated as meaning "repetition" Two verses in Qur'an refer to Al mesani / Al mesaniy: 15:87and 39.23.
Qur'an 39:23 makes it clear that there is a mesani / mesaniy and Qur'an, and they are separate: