Hadith 4:470
Ibn Idris narrated to us, from Yazid and Ubayd Allah, from Nafi, from Ibn Umar, that he used to be cupped while he was fasting. Then he abandoned that. I do not know for what reason he abandoned it; whether he disliked it or [because of] weakness.
حدثنا بن إدريس عن يزيد وعبيد الله عن نافع عن بن عمر أنه كان يحتجم وهو صائم ثم ترك ( ( ( تركه ) ) ) ذلك فلا أدري لأي شيء تركه كرهه أو للضعف