Ibn Jurayj ابن جريج · The Book on Virtues of Jihad

That the Messenger of Allah (ﷺ) said: "None of the people of Paradise would wish to return to the world except for the martyr who indeed would love to return to the world saying that he would love to be killed ten times in Allah's cause because of what he has seen of the honor that He has given him." This Hadith is Hasan Sahih.