The Prophet ﷺ said, "No one who has entered Paradise would wish to return to this world, except the martyr. He longs to return to this world and says, 'Let me be killed ten times in the way of Allah,' because of the honor he sees has been granted to him."
حدثنا محمد بن بشار حدثنا محمد بن جعفر حدثنا شعبة عن قتادة عن أنس عن النبي ﷺ نحوه بمعناه
Agreed upon (Bukhari and Muslim). Bukhari narrated it in the Book of Jihad and Expeditions, chapter on the fighter's wish to return to this world, hadith no. 2817, and Muslim narrated it, hadith no. 1877/109, from Muhammad bin Bashshar with this chain.