 Arabs and Khazars continued to clash sporadically in the North Caucasus in the 9th and 10th centuries , but warfare was localized and of far lower intensity than the great wars of the 8th century . Thus the Ottoman historian Münejjim Bashi records a period of warfare lasting from ca . 901 until 912 , perhaps linked to the Caspian raids of the Rus ' at about the same time , whom the Khazars allowed to pass through their lands unhindered . The Khazar threat receded with the progressive collapse of Khazar power in the 10th century and defeats at the hands of the Rus ' and other Turkic nomads like the Oghuz Turks . The Khazar realm contracted to its core around the lower Volga , and became removed from reach of the Arab Muslim principalities of the Caucasus . Thus Ibn al @-@ Athir 's reports of a war between the Shaddadids of Ganja with the " Khazars " in 1030 probably refers to the Georgians instead . In the end , the last Khazars found refuge among their former enemies . Münejjim Bashi records that in 1064 , " the remnants of the Khazars , consisting of three thousand households , arrived in <unk> [ somewhere in Dagestan ] from the Khazar territory . They rebuilt it and settled in it " . 
