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

And from him, from Muhammad ibn Abi Umayr, from Hammad ibn Uthman, from al-Halabi, from Abu Abdillah عليه السلام, peace be upon him: Imam عليه السلام was asked about ‘a man applying eye-powder (kuhl) while he is fasting.’ Imam عليه السلام said: “No, for I fear that it may enter his head.” – meaning the eye-powder (kuhl) or its sharp scent may enter the throat, for that is disliked.