Hadith.72 - Abu Ja'far Imam Muhammad ibn Ali Al-Baqir (as) said: "The Messenger of Allah (sw) and his wife performed ghusl using five amdad from one container." Zurarah then asked how it was done. Imam (as) said: "He started by immersing his hand in the water before hers and cleansed his private part. Then She did the same and cleansed her private part. After that, he poured water over himself, and She poured water over herself until they were finished. The amount that the Prophet used for ghusl was three amdad, while She used two muds. This was sufficient for both of them because they shared the same water. However, for someone who performs ghusl alone, they must use a saa'."