You mean this one? That says he cannot do it
on his turn? It supports my interpretation.
https://www.sageadvice.eu/2017/12/0...n-can-he-also-use-sneak-attack-on-a-reaction/
Rogue uses sneak attack on his turn can he also use sneak attack on a reaction?
December 7, 2017Zoltar
of a rogue uses sneak attack on his turn can he also use sneak attack on a reaction?Yes
— Mike Mearls (@mikemearls) October 9, 2017
As long as the reaction isn’t on the same turn.
— Jeremy Crawford (@JeremyECrawford) October 9, 2017