: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. It is generally accepted that "''saban minel masani" '' (Seven Oft-repeated verses) and "''quranel azim" '' (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 those muslims who have thought about it.
In the Qur'an Noah is portrayed as prophet teaching against idolatry even before the flood. http://www.usc.edu/dept/MSA/quran/071.qmt.html
