Khasf al-Bayda

According to hadiths, there are five (or more) certain signs which will happen prior to the reappearance of the twelfth (last) Imam of Shia Islam, al-Mahdi.[8][9] Al-Shaykh al-Saduq has narrated --from Ja'far al-Sadiq-- that: five signs are decisive before the rising of Ghaem (قائم): Yamani, Sufyani, Heavenly cry (calling) from the sky, The murder of Nafs-e-Zakiyyah and Khasf-e-Bayda[10][11]

Sufyani and his army will go towards Iraq to attack Mahdi. When the army will enter the territory of Bayda, the Earth will sunk the army of Sufyani except 2 or 3 individuals.[12] In regards to the event of Khasf-al-Bayda, there have been narrated diverse Hadiths concerning the numbers of the presented ones in the army of Sufyani.[13][14][15][16] Some sources say that the army of Sufyani will be 12,000;[17][18] while some say 170,000[19][20] and some sources say 300,000[21] will be the number of Sufyani's army.

According a tradition from, Muhammad al-Baqir: at the End Time, while Sufyani's army enters the territory of (al-) Bayda, a caller will call:

"O plain, annihilate the nation" (of the army of Sufyani)

— Na'mani, Al-Ghaybah, Maktab al-Saduq, Chapter 14, P. 279

• Occultation (Islam)
• Seyyed Hassani
• Seyed Khorasani
• Al-Yamani (Shiism)
• The voice from sky
• The Fourteen Infallibles
• Nafs-e-Zakiyyah (Pure soul)
• Signs of the reappearance of al-Mahdi