We poured medicine into the mouth of Allah's Messenger (ﷺ) during his illness, and he pointed out to us
intending to say, "Don't pour medicine into my mouth." We thought that his refusal was out of the
aversion a patient usually has for medicine. When he improved and felt a bit better he said (to us.)
"Didn't I forbid you to pour medicine into my mouth?" We said, "We thought (you did so) because of
the aversion, one usually have for medicine." Allah's Messenger (ﷺ) said, "There is none of you but will be
forced to drink medicine, and I will watch you, except Al-`Abbas, for he did not witness this act of
yours."
Sahih al-Bukhari Book 87, Hadith 36