مسند أحمد

It was narrated that an-Nazzal bin Sabrah said: A vessel of water was brought to ‘Ali (رضي الله عنه) and he drank whilst standing, then he said: I have heard that some people dislike it if one of them drinks whilst standing. But I saw the Messenger of Allah (ﷺ) do what I have done. Then he took some of the water and wiped himself. Then he said. This is the wudoo` of one who has not broken his wudoo’.