9 From his sixteenth to his twentieth year he shielded himself from heat and rain in a little hut which he had constructed of reeds and sedge. Afterwards he built himself a small cell which remains to the present day, five feet in height, that is less than his own height, and only a little more in length. One might suppose it a tomb rather than a house.
Source: The Life of S. Hilarion (New Advent)