Board Thread:Theories and Speculation/@comment-34661853-20181111160651/@comment-32685487-20181118223543

In the manga, he only states that he gifted Naruto and Sasuke each half of his own chakra when is talking to the 4 Kage. It is never mentioned or hinted that he gave them any abilities or powers or anything. The chakra itself made Sasuke's Rinnegan awaken much much earlier than otherwise. Naruto's body reacted to the chakra and awakened to SPSM. Mind you the act of Hag gifting Naruto and Sasuke each half of his chakra also helped them awaken their own abilities so that is probably what is meant when it is said he gave them abilities in the databook.