Thabit al-Bunani said that when Anas b. Malik was asked whether they disapproved of cupping for one who was fasting in the time of God’s messenger he replied, “No, except if it had a weakening effect.” Bukhari transmitted it.
Hadith Referenceمشكوة المصابيح / كتاب الصوم / 2016
Hadith Gradingالألبانی:صَحِيح | زبیر علی زئی:صحيح
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «رواه البخاري (1940)»