Some people said that the Prophet's drinking while standing overrules his command not to drink while standing. Another group said that his drinking while standing only demonstrates that this practice is only disliked not prohibited. Another group said that there is no contradiction between the two Ahadith. The Prophet drank while standing when he needed to do so, as he came to the well of Zamzam and was given a bucket of water that he drank from while standing.
Drinking while standing begets many ailments and does not quench the thirst, nor will the water settle in the stomach so that the liver transfers it to the rest of the body, In this case, the water will descend quickly to the stomach and will aggravate it, and the water will not be digested properly. However, if one does this occasionally, it will not harm him.