It is narrated from Hazrat Sahar that the Messenger of Allah (peace and blessings be upon him) said: The Day of Judgment will not be established until tribes are swallowed up (by the earth), to the extent that a person will be asked, "Who remains from such-and-such lineage?" The narrator, Hazrat Sahar, says: I realized that the Arabs will be called towards their tribes, and indeed the non-Arabs will go towards their settlements.