Sura al-Insan (76) is among suras sent down to praise Imam Ali and the household of the holy Prophet. Numerous hadiths, opinions, and sources denote that. However, some Sunni sources have ignored that because of treating that sura as being Maccan. Relying on Sunni sources, gathering hadiths and opinions on chronological order of descend of Meccan and Medinan suras, and hadiths concerning causes of descend, descend of that sura in Medina and peculiarity of those virtues to Ahl al-Bayt, and incorrectness of other causes will be proved.