Menurut koleksi [[Hadis]],dalamSyiah ''[[Kitab al-Kafi]]'' volume satu, Imam pertama Syiah, [[Ali bin Abi Thalib]] lahir pada tahun ke-20 Gajah<ref>{{cite web |title=The birth of El Imam Ali related to the year of the elephant |url=http://balaghah.net/old/nahj-htm/eng/id/article/46.htm |website=balaghah.net |access-date=24 July 2018}}</ref> dan meninggal dunia pada 40 [[Hijriyah|H]].<ref>{{cite book|last1=Al-Islam|first1=Thiqatu|title=Al-Kafi|date=2015|publisher=Islamic Seminary Inc.|location=New York|isbn=978-0-9914308-6-4|page=457|edition=Second|url=http://www.theislamicseminary.org/wp/|url-status=live|archive-url=https://web.archive.org/web/20171027221543/http://www.theislamicseminary.org/wp/|archive-date=2017-10-27}}</ref>
