Sayyiduna Rafi' bin Khadij (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "The cupper (hajim) and the cupped (mahjum) have both broken their fast."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصيام / 8279