In His Name And With The Remembrance of His Last Proof on Earth
Muhammad bin Hammam narrated from Ja’far bin Muhammad bin Malik from Ishaq bin Sinan from Obayd bin Kharija from Ali bin Uthman from Furat bin Ahnaf that Abu Abdullah as-Sadiq (s) had narrated from his fathers:
“Once the Euphrates had overflowed during the age of Imam Ali (s). He, with his sons al-Hasan and al-Husayn, made a travel. On their way, they passed by (the tribe of) Thaqeef, who said: “Ali has come to drive water back!” Imam Ali (s) said:
“By Allah, I and both of my sons will be killed but Allah will send a man from among my descendants at the end of the time revenging our bloods. He will disappear (for a long time) so that the deviate people are to be tried until the ignorant will say: Allah has nothing to do with Muhammad’s progeny.”
 Ithbat al-Hudat, vol. 224, Kamal ad-Deen p.302-303, Dala’il al’Imama p.292, I’lam al-Wara p.400, Biharul Anwar, vol.51 p.112, 119.