Muhammad ibn Yaqub, from Ali ibn Ibrahim, from his father, and Muhammad ibn Yahya, from Ahmad ibn Muhammad, all together from Ibn Abi Umayr, from Hammad, from al-Halabi, from Abu Abdillah عليه السلام, peace be upon him, who said: I (narrator) asked Imam عليه السلام about ‘the fasting person, my he undergo cupping (al-hijamah)?’ Imam عليه السلام said: “I fear for him (of weakness); does he not fear for himself?” I (narrator) asked: “What do you fear for him?” Imam عليه السلام said: “Fainting (al-ghashayan), or that bile (mirrah) may be stirred up in him.” I (narrator) replied: “What do you think, if he is strong enough for that and does not fear anything?” Imam عليه السلام said: “Yes, if he wishes.”