Hararis as well as the Somali Sheekhal and Hadiya Halaba clan assert descent from Abadir Umar ar-Rida, also known as Fiqi Umar, who traced his lineage to the first caliph, Abu Bakr. According to the explorer Richard Francis Burton, Fiqi Umar crossed over from the Arabian Peninsula to the Horn of Africa ten generations prior to 1854, with his six sons: Umar the Greater, Umar the Lesser, the two Abdillahs, Ahmad and Siddik. According to Hararis, they also consist of seven Harla subclans: Abogn, Adish, Awari, Gidaya, Gaturi, Hargaya, and Wargar. The Harari were previously known as Adere, although this term is now considered derogatory.