Talmud (Rodkinson Edition) — Book 1…
“ One may kindle a fire for a woman lying in, on the Sabbath, and not only for a woman lying in, but also for a sick person; not only in the winter but also in the summer-time, as R. Hyya bar Abhin said in the name of Samuel, that one, who was bled and caught cold, may have a fire made for him on Sabbath not only in the winter, but also in the summer-time. ”
