“Here He was imprisoned in an underground dungeon, where the light of day was never seen. A heavy chain was placed about His neck by which He was chained to five other Bábís; these fetters were locked together by strong, very heavy bolts, and screws. His clothes were torn to pieces, also His fez. In this terrible condition He was kept for four months.”

– ‘Abdu’l-Bahá, Paris Talks, referring to Bahá’u’lláh’s imprisonment in the Síyáh-Chál (Persian: سیاه چال ‎ literally “black pit”)