Musnad Ahmad 1153:1990

Yazid narrated to us, he said: Sufyan informed us, from al-Zuhri, from Urwah, from Aisha, she said: A Jewish woman asked her [for something], so she gave her. Then she [the Jewish woman] said to her: "May Allah protect you from the punishment of the grave." Aisha denied that. When she saw the Prophet, may Allah bless him and grant him peace, she told him [about it]. He said: "No." Aisha said: Then the Messenger of Allah, may Allah bless him and grant him peace, said to us after that: "It has been revealed to me that you will be tested in your graves."