Naruto: How Hashirama Senju achieved Sage mode, explained

​The Naruto universe has witnessed firsthand how powerful Hashirama Senju’s Sage Mode can be, but not much is known about it.

Hashirama Senju, TASW Wiki

Naruto: 10 Things Every Fan Should Know About Hashirama Senju

Sage Mode, Narutopedia

Hashirama Senju (Reanimation Sage Mode), NarutoxBorutoNinjaVoltage Wiki

Naruto Chapter 621 Breakdown: You've got to “hand” it to Hashirama… he's good.

Hashirama Senju, VS Battles Wiki

Sage mode Hokage Naruto vs sage mode Hashirama - Battles - Comic Vine

It's weird to me Hokage Naruto still need time to turn into Sage Mode while Hashirama/Kashin Koji can turn almost immediately. : r/Naruto

Naruto: The Potential Origins of Hashirama's Sage Mode

What type of Sage mode is Hashirama using? - Quora

It's weird to me Hokage Naruto still need time to turn into Sage Mode while Hashirama/Kashin Koji can turn almost immediately. : r/Naruto

Naruto vs Hashirama: Who would win in a 1v1?