Fabricating a saying and attributing it to the Prophet remains prohibited even when intended to encourage virtues or warn against vice. Al-Nawawī recounts the erroneous defense advanced by the Karrāmiyyah and some followers: that such fabrication is supposedly a lie **for** the Prophet, not **about** him. Others sought to restrict the warning to lies intended to mislead, appealing to an alleged addition mentioning misleading people.
**Two substantive replies:** (1) Al-Nawawī reports the hadith critics' rejection of the alleged لِيُضِلَّ addition as unauthenticated; it cannot impose a new condition upon the established warning. (2) Even hypothetically, its *lām* could express **consequence** (*lām al-ʿāqibah*), meaning that false attribution results in misleading people irrespective of the fabricator's professed benevolent intent. A good objective never turns an invented report into Prophetic authority. The qualified scholarly treatment of weak reports is distinct from **deliberately fabricating** one.