Dayr al Hayek means "the monastery of the weaver" and is a cave south of Deir Mar Musa. The archaeological evidence found in the cave suggests that it was inhabited by a hermit in the early phase of the monastery when it was a lava. This means that the monks lived in cells/caves around the central monastic buildings and came together only for communal prayer at specific times. The cave was named due to the fact that a loom was discovered there. A new building now envelops the cave as an annexe to the main monastery of Deir Mar Musa.