Board Thread:Naruto Discussions/@comment-26993711-20160707202551/@comment-9782468-20160707203840

Considering he can phase through a Rasengan which, like Susanoo, is made of chakra, I bet he can get through Susanoo. But by that point you probably couldn't see him, seeing as he'd be completely in Kamui's dimension. So I don't think he could grab the user.