Shaddad b. Aus said that when God’s messenger was walking hand in hand with him on the eighteenth of Ramadan he came across a man in al-Baqi who was being cupped and said, “The one who cups and the one who is cupped have broken their fast.”
Abu Dawud, Ibn Majah and Darimi transmitted it. The shaikh and imam Muhyi as-sunna said that some of those who allow cupping have interpreted it as meaning that they exposed themselves to the danger of breaking the fast, the one who was cupped on account of weakness, and the one who did the cupping because he could not guarantee that something would not get into his stomach by sucking the flask.
One of the Prophet’s companions said he had seen the Prophet in al-'Arj* pouring water over his head while he was fasting; either because of thirst or because of the heat.
*A wadi in the neighbourhood of at-Ta’if.
Abu Huraira reported God’s messenger as saying, “If anyone breaks his fast one day in Ramadan without a concession* or without being ill, a perpetual fast will not atone for it even if he observes it.”
*e.g. while travelling.
Ahmad, Tirmidhi, Abu Dawud, Ibn Majah, Darimi and Bukhari in a chapter heading transmitted it. Tirmidhi said that he heard Muhammad, i.e. Bukhari, say this was the only tradition he knew by Abul Mutawwis the transmitter.
