zhěn shí sòu liú ㄓㄣˇ ㄕㄧˊ ㄙㄡˋ ㄌㄧㄨˊ 枕石嗽流 见“ 枕石漱流 ”。
Use a stone as a pillow and rinse one's mouth by means of stream - water -- living in seclusion
枕(zhěn)
石(shí dàn)
嗽(sòu)
流(liú)