Musnad Ahmad 908:20

Waki’ narrated to us, Al-A’mash narrated to us, from Abu Ishaq, from ‘Abd al-Rahman ibn Zayd al-Fa’ishi, from the daughter of Khabbab, who said: Khabbab went out on a military expedition, and the Messenger of Allah (peace and blessings of Allah be upon him) used to look after us. He would even milk a goat of ours, and he would milk it into a large bowl of ours, and it would fill up until it overflowed. She said: When Khabbab returned, he milked it, and its milking returned to what it had been [before]. She said: We said to Khabbab, "The Messenger of Allah (peace and blessings of Allah be upon him) used to milk it until our bowl would fill up, but when you milked it, its yield decreased."