Musannaf Ibn Abi Shayba 33:1441

Abu Usama narrated to us, from Zakariya, from Abu Ishaq, from Sa’d ibn Ma’bad, who said: Asma bint Umays narrated to me that Ja’far came to her when they were in Abyssinia, and he was weeping. She said: "What is the matter with you?" He said: "I saw a pampered youth from Abyssinia, large-bodied, pass by a woman and knock over flour that was with her, and the wind blew it away." She said: "Have you left it until the day when the King sits upon the throne and takes [justice] for the oppressed from the oppressor?"