Board Thread:Theories and Speculation/@comment-28136690-20160425201528/@comment-25122992-20160425201944

Toneri just pushed him back with unnamed jutsu. There could be a lot of options for it's identity (from the Gentle Fist to the Shinra Tensei), but since it was neither named nor explained, there's nothing we can say for sure. For now he don't have any evidence that Tenseigan can retain Byakugan technques, so by default it cannot.