preferences" of Muhammad); and that which is binding on Muslims -- al-sunna al-hudā. The literalist Zāhirī school disagrees holding that there was no sunnah whose fulfillment is not rewarded or neglect punished, while classical Islam holds that following non-binding al-sunna al-ʿādīyah is meritorious but not obligatory. Sufis see the "division between binding and non-binding" sunnah as "meaningless". Muhammad is al-insān al-kāmil, the perfect man, labib-Allah beloved of God, an intercessor, a "channel of divine light". Imitating his every action is "the ultimate expression" of piety. or in the words of Al-Ghazālī: Know that the key to joy is following the sunnah and imitating the Prophet in all his comings and goings, words and deeds, extending to his manner of eating, rising, sleeping and speaking. I do not say this only in relation to requirements of religion [ʿibādāt], for there is no escaping these; rather, this includes every area of behavior [ʿādāt]. Modernist Islam In the 19th century, "social and political turmoil" starting with the decline of the Moghal empire, caused some Muslims to seek a more humanized figure of Muhammad. The miracle-performing "larger than life" prophetic figure was de-emphasized in favor of "a practical model for restoration of the Muslim community," a virtuous, progressive social reformer. Nasserist Egypt, for example, celebrated the "imam of socialism" rather than the cosmic "perfect man". One who argued against the idea of sunnah as divine revelation, and for the idea that Muhammad's mission was simply to transmit the Quran was Ghulam Ahmed Perwez (1903–1985). He quoted the Quranic verse "The messenger has no duty except to proclaim [the message]," (Q.5:99) and pointed out several other verses where God corrects something Muhammad has done or said (8:67),(9:43), (66:1), thus demonstrating Muhammad's lack of supernatural knowledge. This era of rapid social and technological change, decline of Muslim power, and replacement of classical madhhab by Western-inspired legal codes in Muslim lands, also suggested a turn away from the "detailed precedents in civil and political affairs," called for by traditional Hadith, "for if worldly matters require detailed prophetic guidance, then every age will require a new prophet to accommodate changing circumstances". Islamic revivalism With de-colonialization in the late 20th century, a new Islamic revival emerged. Activists rather than theorists, they sought "to restore Islam to ascendency", and in particular to restore Sharia to the law of the lands of Islam it had been before being replaced by "secular,