4-130 Ali ibn Ahmad ibn Abdullah ibn Ahmad ibn Aba Abdullah al-Barqy narrated that his father quoted Ahmad ibn Aba Abdullah, on the authority of his father Muhammad ibn Khalid who linked it up through a chain of narrators to Aba Abdullah as-Sadiq (MGB),

“There were four kings on the Earth: two of the believers and two of the atheists. The two of the believers were Solomon - the son of David (MGB) and Zul-Qarnayn. The name of Zul-Qarnayn was Abdullah ibn Zahhak ibn Ma’d. The two atheists were Nimrood and Bakht ul-Nasr.”