It is narrated from Sayyidah Khawlah bint Hakim (may Allah be pleased with her) (and the Messenger of Allah (peace and blessings be upon him) had married her, then included her among those whom he (peace and blessings be upon him) had deferred (from consummation or from a turn)) that the Messenger of Allah (peace and blessings be upon him) was asked about a woman who sees in her dream what a man sees. He (peace and blessings be upon him) said: "She is (in ruling) just like a man: when she has an emission, she should take a ritual bath (ghusl), and if she has no emission, she does not take a ritual bath."
No one narrated this hadith from Umarah (may Allah have mercy on him) except Ali (may Allah have mercy on him).
Hadith Referenceالمعجم الأوسط / باب الألف / 652
Hadith Gradingمحدثین:إسناده حسن
Hadith Takhrij«قال الهيثمي: إسناده حسن «مجمع الزوائد ومنبع الفوائد، ج 9، ص 259»» «أخرجه النسائي فى «المجتبى» برقم: 198 / 4، والنسائي فى «السنن الكبرى» برقم: 202، والدارمي فى «مسنده» برقم: 789، وابن ماجه فى «سننه» برقم: 602، وأحمد فى «مسنده» برقم: 27953، 27954، وابن أبي شيبة فى «مصنفه» برقم: 885، والطبراني فى «الكبير» برقم: 612، 613، 610، 611»