Sunan an-Nasa'i 1308

Muhammad ibn Bashshar narrated to us, from Muhammad, who said: Shu‘bah narrated to us, from Ash‘ath, from his father, from Masruq, from ‘Aishah—may Allah be pleased with her—who said: I asked the Messenger of Allah (ﷺ) about the punishment of the grave. He said, “Yes, the punishment of the grave is real.” ‘Aishah said: After that, I never saw the Messenger of Allah (ﷺ) pray without seeking refuge from the punishment of the grave.