Abu Dawud Book 32, Hadith Number 4292.
Narated By AbuBakrah : The Apostle of Allah (PBUH) said: Some of my people will alight on low-lying ground, which they will call al-Basrah, beside a river called Dajjal (the Tigris) over which there is a bridge. Its people will be numerous and it will be one of the capital cities of immigrants (or one of the capital cities of Muslims, according to the version of Ibn Yahya who reported from AbuMa’mar).
At the end of time the descendants of Qantura’ will come with broad faces and small eyes and alight on the bank of the river. The town’s inhabitants will then separate into three sections, one of which will follow cattle and (live in) the desert and perish, another of which will seek security for themselves and perish, but a third will put their children behind their backs and fight the invaders, and they will be the martyrs.