Reference: Fataawa al-Lajnah ad-Daa.imah lil-Buhooth al-‘Ilmiyyah wal-Iftaa. – Fatwa No.11917
Fataawa Ramadhaan – Volume 2, Page 470, Fatwa No.408
Question: Is the fast of the cupper and the cupped broken during the day in Ramadhaan?
What is the ruling, do they continue with their fast broken or make up for that which has passed or what?
Response: The fast of the cupper and the cupped is broken and they must refrain from all that which breaks the fast, and they must make up this day. That which the Prophet said is:
«The cupper and the cupped have broken their fast».
And with Allaah lies all the success, and may Allaah send prayers and salutations upon our Prophet Muhammad ﷺ and his family and his companions.