[Once] Abū Khālid al-Kābulī narrated from Imam al-Bāqir (pbuh):

When Imam Qa`em (hgr) arises, he (hgr) goes everywhere and he (hgr) reaches Moor (which is located at Lower Yemen)

There [Some people] inform him,

‘They murdered the governor whom you appointed [to rule] in  Mecca!’

[So] Qa`em (hgr) returns to Mecca and just kills the murderers.

Then he heads for inviting people to God`s religion.

So far that he reaches Baydāʾ`

There, two armies of Sufyāni make an attempt on his life.

But God orders to the earth to split and they fall into it.

And this is the meaning of the following noble verse:

️ولَوْ تَرَى إِذْ فَزِعُوا فَلَا فَوْتَ وَأُخِذُوا مِنْ مَكَانٍ قَرِيبٍ [سبأ/۵۱]

If thou couldst but see when they will quake with terror; but then there will be no escape (for them), and they will be seized from a position (quite) near. (Holy Qur`an, Surah SABA, verse 51) ”

۱-Sufyāni is a character from Islamic eschatology and he is the one who is the rival and opponent of Imam Mahdi (hgr).

۲-Al-Khasf bi l-Baydāʾ is an incident in which the Earth will swallow the land, al-Bayda’, that is, the collapse and defeat of the army of Sufyāni in the land of al-Bayda’, a desert between Mecca and Medina. In some hadiths, this incident is regarded as a decisive sign of the uprising of Imam al-Mahdi (a). This incident is supposed to occur after the Reappearance and before the uprising of Imam al-Mahdi (a). (https://en.wikipedia.org)

Collection date:

۱۰/ ۱۳/ ۲۰۱۶

إثباث الهداة، ج۵، ص۱۹۰

Ithbat al-hudat”, Vol.5, P.190″1-

الزام الناصب، ج۱، ص۸۴

۲–“Ilzām al-nāṣib”, Vol.1, P.84