Any banner raised before...
Al-Kāfi|Volume 8|Book 1|Chapter 452
عَنْهُ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ الْحُسَيْنِ بْنِ سَعِيدٍ عَنْ حَمَّادِ بْنِ عِيسَى عَنِ الْحُسَيْنِ بْنِ الْمُخْتَارِ عَنْ أَبِي بَصِيرٍ عَنْ أَبِي عَبْدِ اللَّهِ (عليه السلام) قَالَ كُلُّ رَايَةٍ تُرْفَعُ قَبْلَ قِيَامِ الْقَائِمِ فَصَاحِبُهَا طَاغُوتٌ يُعْبَدُ مِنْ دُونِ اللَّهِ عَزَّ وَ جَلَّ.
452. From him, from Ahmad bin Muhammad, from Al-Husayn bin Saeed, from Hammad bin Isa, from Al-Husayn bin Al-Mukhtar, from Abu Basir, who has narrated the following: "Abu Abdullah عليه الصلاة والسلام having said ‘Every banner that is raised before the rising of Al-Qaim عليه الصلاة والسلام, so its owner is a tyrant who worships someone apart from Allah عز وجل Mighty and Majestic.'"
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (16/325)
- Ṣaḥīḥ al-Kāfī, vol. 3, p. 402