ʿAmr ibn Ḥazm al-Anṣārī

ʿAmr ibn Ḥazm was a young Companion of the Khazraj whom the Prophet ﷺ sent to Najrān, in the far south of the Ḥijāz, as its religious teacher and governor after the whole province accepted Islam early in the tenth year. What made him famous in the books of Sīrah and fiqh is the letter he carried: the last letter the Prophet ﷺ ever dictated, roughly a month before his death, over a page of waṣāyā on how to lead and teach the new Muslims. One of its lines, لَا يَمَسُّ الْقُرْآنَ إِلَّا طَاهِرٌ ("none touches the Qurʾān except one who is pure"), became the primary evidence for the majority of the schools that one must have wuḍūʾ to touch the muṣḥaf.