@ArsenixShirogonI have a DM that says you need proficiency in a skill to help with skill checks but I can’t find the rule. Can you point it out? nope, don't think that's the rule.
— Mike Mearls (@mikemearls) December 8, 2015
@mikemearls I don't mind the house rule but he insists it's RAW. What page number is helping on ability checks on so I can double check it?
— Ryan Sandhouse (@ArsenixShirogon) December 8, 2015
@ArsenixShirogon PHB page 192, under the Help header
— Mike Mearls (@mikemearls) December 8, 2015