Umm Hakim bint Amr bin Sinan al-Jadaliyyah relates: Al-Ash'ath bin Qays sought permission (to visit) Sayyiduna Ali (may Allah be pleased with him), but Qanbar turned him back and made his nose bleed. So Sayyiduna Ali (may Allah be pleased with him) came out and said: O Ash'ath! What is the matter between you and him? By Allah, had you clashed with the slave of Thaqif, the hairs of your backside would have stood on end. He was asked: O Commander of the Believers! Who is the slave of Thaqif? He said: A young man who will rule over them; there will not remain a household of the Arabs but he will bring humiliation upon them. It was asked: How long will he rule? He said: Twenty (years), if he completes them.
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 647