It is narrated from Hazrat Hafsa that I heard the Prophet (peace be upon him) say: "An army will surely set out from the east with the intention of attacking this House (the Ka'bah). When they reach a place called Bayda, the middle part of their army will be swallowed by the earth, and the people at the front and rear will call out to each other, but only one man among them will survive who will inform the people about them." I asked, "O Messenger of Allah, what will happen to the person who was forcibly included in that army?" The Prophet (peace be upon him) replied, "This calamity will befall all of them, but Allah will resurrect each person according to his intention."