Imam Al Baqer pbuh said:”The emergence of the Sufyani, Yamani and Khurasani is in one year, in one month, in one day, ordered like the order of beads,some people will follow some of them and there will be misery on every face, woe to those who stayed far away from them and there is no banner more guided than the banner of the Yamani, his banner is the banner of guidance because he calls/ invites to your Companion/Sahib(Sahib al Zaman a.s), so if the Yamani emerges he will make arms dealing forbidden for the people and every Muslim, and if the Yamani emerges then rise up towards him,indeed his banner is the banner of guidance, and it is not permitted for a Muslim to turn away from him,and whoever does this then he is from the people of the hellfire,because he calls/invites to the truth and to the straight path”p.264 Gaibat Al Numani
قال الامام الباقر ع خروج السفياني واليماني والخرساني في سنة واحدة في شهر واحد في يوم واحد نظام كنظام الخرز يتبع بعضه بعضا فيكون الياس من كل وجه بحار الانوار ج 52/208
Imam Al-Baqer a.s said:”Khorooj” Emergence of Sufyani,Yamani,Al-Khurasani in one year,one month,and in one day,arranged like the beeds (in a string) one follows the other,and so then despair will be in every direction.
Bihar Al-Anwar v.52 p.208
Difference between Thohoor and Khurooj:
Meaning of Khurooj”emergence”: When Yamani,Sufyani,Khorasani all prepare themselves so they can go to war or when war/battle begins it happens in one day or one month or one year.
Meaning of Thohoor”appearance”:When Yamani,Sufyani,Khurasani appear before Khurooj, they will take years in order to gather their troops and followers before heading to battle. Similarly, Prophet Muhammad s.a.w appeared with his call alone and then Imam Ali a.s. was the first to follow him and then he spent 13 years preaching until 313 companions were with him and THEN he made khurooj against the disbelievers. So it takes a long process before the Prophet s.a.w makes khurooj to go to war and battle.
Ahmad Al-Hassan a.s has appeared but did not make khurooj yet against the enemies until Allah swt permits it. He will make khurooj when Imam Al-Mahdi a.s orders him and when the Halaqa”the complete round of the Mahdi victors” are present.
Imam Jaafer son of Muammad a.s:”The Riser will not emerge until the round completes”.So I said:”How much is that round?”.He said:10,000
p.361 v.52 Bihar AlAnwar Gaibat Al Numani p.307-308
So the Yamani will take time to gather this amount of great believers because not all Shias will accept the Imam pbuh and there will be a severe trial with the Yamani.
Anyhow,Ahmed AlHasan pbuh said:
“The narration says that the Yamani is the man of the banner or commander of an army and says that if he emerges its obligatory to stand to him or fight with him, so is it conceivable for a person to fight with a commander and he did not pledge allegiance to him before and believe in him?”
“Do you think that they will appear and prepare their armies and fight with many armies during 24 hours for example? Does the mind accept this understanding?” Virtuous servant volume 2 p.47
And this hadeeth proves the point that was made, the Yamani appears before the Sufyani but will make Khorooj(fight him)on the same day.
Imam Al Sadeq a.s:”Before the Sufyani is an Egyptian and a Yamani” Bihar Al Anwar v.52 p.210