NOT KNOWN FACTUAL STATEMENTS ABOUT NARUTO

Naruto suggests that Sasuke is like a brother to him Which he will do something to safeguard that bond. Sasuke vows to sever that bond, but acknowledges Naruto being an equivalent by putting on his forehead protector. They continue buying and selling blows, with Naruto eventually manifesting a fox-shaped cloak and Sasuke coming into his cursed seal