Path on Mount Thawr leading to the cave
Abu Bakr Al-Hazimi: al'Amakin 'aw ma 'attafiq (d1188)
(Book on homonymous place-names)
----------------------------------------
Taken from: http://sh.bib-alex.net/boldan/Web/122/001.htm
(The mountains Thabir in Mecca) including Thabyr Zinj, because al Zinj were playing there and on Thabyr al'aeraj.
Note: At least the following authors have the story of the mountain Thabir or Thabyr or Thaber of the Zanj.
(see my webpages): Ahmad al-Azraqi 858; Al Fakihi 883; Al Iskandari 1165; Abu Bakr Al-Hazimi 1188; Yakut al Hamawi 1220; Muhammad al Fasi, Maliki 1430; Ibn Dhahirah 1457.