As narrated by al-Shaykh from Abu al-Qasim Ja'far ibn Muhammad, from Muhammad ibn Ya’qub, from Muhammad ibn Yahya, from Ahmad ibn Muhammad, from Ibn Mahbub, from Abdullah ibn Sinan, who said: I asked Abu Abdullah عليه السلام about a woman who sees in her dream that a man has intercourse with her in her private part and she ejaculates. What should she do? Imam عليه السلام replied: "She must perform ghusl."