Ibn Battuta quotes
There are a large number of religious establishments ["convents "] which they call khanqahs, and the nobles vie with one another in building them. Each of these is set apart for a separate school of darwishes, mostly Persians, who are men of good education and adepts in the mystical doctrines. Each has a superior and a doorkeeper and their affairs are admirably organized. They have many special customs one of which has to do with their food. The steward of the house comes in the morning to the darwishes, each of whom indicates what food he desires, and when they assemble for meals, each person is given his bread and soup in a separate dish, none sharing with another. They eat twice a day. They are each given winter clothes and summer clothes, and a monthly allowance of from twenty to thirty dirhams. Every Thursday night they receive sugar cakes, soap to wash their clothes, the price of a bath, and oil for their lamps. These men are celibate; the married men have separate convents.
Ibn Battuta