Sahih Muslim Book 003, Hadith Number 0634.
Chapter : The quantity of water that is desirable for a bath because of sexual intercourse, bathing of the male and female with one vessel in the same condition and washing of one of them with the left-over of the other.
Anas reported that the Messenger of Allah (may peace he upon him) took a bath with five Makkuks of water and performed ablution with one Makkuk. Ibn Muthanna has used the words five Makakiyya, and Ibn Mu'adh narrated it from 'Abdullah b. 'Abdullah and he made no mention of Ibn Jabr.