Musa bin Uqbah (may Allah have mercy on him) said: I heard Sayyidah Umm Khalid bint Khalid (may Allah be pleased with her) saying: I heard the Messenger of Allah (peace and blessings be upon him) saying: "Seek refuge with Allah from the punishment of the grave, for the punishment of the grave is true."
Musa bin Uqbah said: I have not heard anyone say "I heard the Prophet (peace and blessings be upon him)" except Umm Khalid (may Allah be pleased with her).
Hadith Referenceالمعجم الكبير للطبراني / مسند النساء / 21705