Hadith 4:436
Yazid ibn Harun narrated to us, he said: Ayyub Abu al-Ala informed us, from Qatadah, from Shahr ibn Hawshab, from Bilal, he said: The Messenger of Allah (may Allah bless him and grant him peace) said: "The one who performs cupping and the one for whom cupping is performed have broken their fast."
حدثنا يزيد بن هارون قال أخبرنا أيوب أبو العلاء عن قتادة عن شهر بن حوشب عن بلال قال قال رسول الله صلى الله عليه وسلم أفطر الحاجم والمحجوم