Musnad Ahmad 1060:78

'Abd al-Razzaq narrated to us, Ibn Jurayj informed us, 'Amr ibn Dinar informed me, from 'Abd al-Rahman ibn al-Sa'ib, from 'Abd al-Rahman ibn Su'ad—and he was trustworthy among the people of Medina—from Abu Ayyub, that the Prophet, peace and blessings of Allah be upon him, said: "Water is from water."