It is narrated from Sayyiduna Ali (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) and his noble wife used to perform ghusl from the same vessel.
Hadith Referenceمسند احمد / مسند الخلفاء الراشدين / 572
Hadith Gradingحکم دارالسلام:صحيح لغيره، وهذا إسناد ضعيف لضعف الحارث