Assertion: black robe | /r/HasProperty | retained as officialtheological dress
Facets:
Source sentences:
text: As the Abbasid caliph was still theoretically the head of Muslim Sunnīs, black robes and head coverings were retained as "official" theological dress although Sultan Barquq, tiring of it in 1396 and 1397, ordered the wearing of colored woollen outer garments.