Al-Shāfiʿī (رحمه الله) said:
“I have not eaten to my fill in over sixteen years
except once, whereupon I used my hands to induce vomiting. This is because
satiation (eating to the fill) burdens the body, hardens the heart, puts an end
to intelligence, brings about sleep and weakens from worship.”
Al-Siyar (Tahdhīb, 1/848)
Translated by Abu Iyaad Amjad Rafiq حفظه الله