Sahih Bukhari
Hadith #1372
Narrated Masruq:`Aisha said that a Jewess came to her and mentioned the punishment in the grave, saying to her, ""May Allah protect you from the punishment of the grave."" `Aisha then asked Allah's Messenger (ﷺ) about the punishment of the grave. He said, ""Yes, (there is) punishment in the grave."" `Aisha added, ""After that I never saw Allah's Messenger (ﷺ) but seeking refuge with Allah from the punishment in the grave in every prayer he prayed