How did the Prophet, peace and blessings be upon him, clean himself with water after urinating? And what was the method of pouring the water, the quantity of water used, and how did he purify his hand?

The Prophet, peace and blessings be upon him, would sometimes clean himself with water, and sometimes with stones, and he often combined both. The Prophet, peace and blessings be upon him, would also wipe his hand with earth after cleaning himself with water. He did not consume much water, but rather cleaned himself from a small vessel called an "idāwah." The best method for cleaning oneself is to combine stones (or what takes their place) and water. One should begin with stones to reduce the impurity, then follow with water. If one wishes to limit oneself to one of them, it is permissible to limit oneself to either, and water is better because it purifies the area with true purity.