Board Thread:Theories and Speculation/@comment-25139119-20150807165411/@comment-26665178-20150809175508

@Elveonora Yes truth by facts.

The Sharingan descends to the Uchiha from Indra Ōtsutsuki, who himself derived it from his grandmother, Kaguya Ōtsutsuki's, Rinne Sharingan.

It is said that the Uchiha clan's origins lie with the Hyūga clan,[5] which is later proven to be true as both originated from Kaguya and passed on to her son Hamura.

Nuff said.

Edit: @Sasuke Uchiha and Hyuga both come from the Otsutsuki Clan.