Chapter on Ruling of Treatment for the Fasting Person, Kohl, Cupping, the Tooth-Stick (Siwak), Entering the Bathhouse, and Other than That

Ali ibn al-Hasan, from Ali ibn Asbat, from Ala ibn Razin, from Muhammad ibn Muslim, who said: I (narrator) asked Abu Abdillah عليه السلام, peace be upon him, about ‘regurgitation (al-qals), does it break the fast of the fasting person?’ Imam عليه السلام said: “No.”