Is it permitted to cleanse the mouth with water whilst fasting?

Dr. Zakir: As far as putting water in the mouth or gargling the mouth with water or putting water in the nose, whether a person is feeling hot, or whether while doing wudhu, it is permissible because it doesn’t enter the body, as long as the water doesn’t enter the body, a person does not swallow the water it’s permissible. And in wudhu gargling is a requirement, putting water in the mouth is a requirement, but natural doing wudhu is Fardh before offering Salaah and while Fasting you have to offer Salaah and we have to do wudhu. So how can it be prohibited? So when a person puts water in his mouth while gargling in wudhu or otherwise he should be careful that he does not swallow the water and when he puts it in to the nose, there are some people who think it will break the fast based on a Hadith and that’s the reason they only touch the water to the tip of the nose and they don’t put it inside because in the Hadith of the Messenger of Allah (Subhana wa Ta’ala) and Muhammad (saw) said,
It’s mentioned in the Hadith of Sunan Abu Dawud, Vol. No. 2, in the Book of Fasting, Hadith No. 2360, that the Prophet said,
“Snuff water excessively while doing wudhu except while fasting.”