Deletion of Those firmly rooted in knowledge (2nd nomination)

Comment: appears to barely pass notability with Neuwirth and Bar-Asher, and |barely notable is still notable. &ndash
Stance: keep
Cited policy: Wikipedia:Notability (WP:IFINDOUBTCREATE)

Comment: It took just a few seconds to find some detailed discussion of the phrase and its significance which is described as a  ''https://books.google.co.uk/books?id=3WwAAgAAQBAJ&pg=PA175 "matter of great dispute"''.  Maybe it would fit best in some larger page about Islamic theology and the Sunni/Shia schism but that's a matter of ordinary editing, not deletion, per 
Stance: keep
Cited policy: Wikipedia:Editing policy (WP:PRESERVE)