Musnad Ahmad 789:51

'Abd al-Razzaq narrated to us, Ma'mar informed us, from Matar, from 'Abd Allah ibn Buraydah al-Aslami, who said: 'Ubayd Allah ibn Ziyad doubted the Basin (al-Hawd), so he sent for Abu Barzah al-Aslami. When he came to him, the companions of 'Ubayd Allah said to him: "The Prince only sent for you to ask you about the Basin, so did you hear anything from the Messenger of Allah, may Allah bless him and grant him peace?" He said: "Yes. I heard the Messenger of Allah, may Allah bless him and grant him peace, mention it: 'Whoever denies it, may Allah not let him drink from it.'"