Board Thread:Boruto Discussions/@comment-33255203-20171004210031/@comment-25643824-20171027181613

LegionZero wrote: Everyone who has talked about advancing eyes to Rinnegan/Tenseigan never said they needed to be transplanted, only that the eyes require certain chakra to be added to them. On the EMS was stated to require a transplant and the whole Sharingan dojutsu line is seperate from the Rinnegan line.

Only someone not of the bloodline with the power of the eye

One only needs certain chakra applied to certain eyes to achieve Rinnegan/Tenseigan. Chapter 671 around 53 minutes or so into the Last confirms this

Now its your turn. When/where does it say that transplants were necessary to achieve Rinnegan/Tenseigan

So what you are in a nutshell is that you still have absolutely no evidence of someone achieving rinnegan/tenseigan with their own eyes (certain eyes which are clan members but not the individuals).

PS: I am not required to prove anything since the manga already does that for me, sasuke, Madara and toneri all had transplants there's my proof where's yours???