The Prophet (ﷺ) as saying: A man who cups and a man who gets himself cupped break their fast.

Abu Dawud said: Ibn Thawban transmitted a similar tradition from his father on the authority of Makhul through an chain of narrators mentioned by him.
Sunan Abi Dawud Book 14, Hadith 59
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Sunan Abi Dawud Book 14, Hadith 58 Next Hadith → The Messenger of Allah (ﷺ) had himself cupped when he was fasting.

Abu Dawud said: Wuhaib b. Khalid narrated a similar tradition from Ayyub through a different chain of narrators. Ja'far b. Rabi'ah and Hisham, that is, Ibn Hassan, narrated a similar tradition from 'Ikrimah on the authority of Ibn 'Abbas.

Sunan Abi Dawud Book 14, Hadith 60