The word Mesani or Mathaani is translated as meaning "repetitionoft-repeated-lines" or oral tradition. Two verses in Qur'an refer to Al mesani / Al mesaniy: 15:87and 87 and 39.23.
Qur'an 39:23 makes it clear that there is a mesani / mesaniy and Qur'an, and they are separate:
:15.87 And We have bestowed upon thee the '''Seven Oft-repeated (verses)''' and the Grand Qur'an.
Which implies that there were seven laws before the giving of the Qur'an. Sabians accept the Quran as an expansion or commentary on the seven mathaani which they specifically identify as the noahide oral tradition with some slight differences. For sabians the word alislam is but the description given to Noahide HaLakhah or Din expanded from the oral tradition (Mathaani). It is generally accepted that ''saban minel masani'' (Seven from the Oft-repeated verses) and ''quranel azim'' (the Grand Reading/Qur'an) must be two different things because they are separated with conjunction waw. However many Islamic scholars are at a loss to defined what the Mesani is. The proposal that they are the seven laws of Noah has been found acceptable by certain muslims who have studied the issue and not found to be theologically problematic.
In the Qur'an Noah is portrayed as a great prophet teaching against idolatry even before the flood.<ref>[http://www.usc.edu/dept/MSA/quran/071.qmt.html Translations of the Qur'an, Chapter 71: NOOH]</ref>
The Qur'anic word "mesani" is probably derived from the same word as the Hebrew word "mishna" (repetition), and probably derived from the hebrew.
