Sunan Ibn Majah, Chapter: Chapters Regarding Funerals

"I heard the Messenger of Allah (saw) say: 'There is no Prophet who fell sick but he was given the choice between this world and the Hereafter.' She said: 'When he became sick with the illness that would be his last, (his voice) became hoarse and I heard him say, "In the company of those on whom Allah has bestowed His grace, of the Prophets, the true believers, the martyrs, and the righteous.'" [4:69] Then I knew that he had been given the choice." Sahih