Madara Uchiha as we know was the eternal rival of Hashirama Senju. He was the leader of the Uchiha clan and fought Hashirama on several occasions. But, in each and every one of their fights he lost to Hashirama.
P.S: All Manga panels are taken from MangaStream and MangaPanda.
After the battle of at the Valley of End, Hashirama believed that he had killed Madara using his Wood Clone.
But, Madara had already activated the Izanagi in one of his eyes and survived. He later awakened the Rinnegan with the help of Hashirama’s cells. But, when he was summoned Madara had both the eyes intact. So, how was this possible?