Baiʿa or Bay’ah (بيعة)
Oath of Allegiance
عَلِيٌّ عَنْ أَبِيهِ عَنِ النَّوْفَلِيِّ عَنِ السَّكُونِيِّ عَنْ أَبِي عَبْدِ اللَّهِ ع قَالَ قَالَ رَسُولُ اللَّهِ ص يَجِيءُ كُلُّ غَادِرٍ يَوْمَ الْقِيَامَةِ بِإِمَامٍ مَائِلٍ شِدْقُهُ حَتَّى يَدْخُلَ النَّارَ وَ يَجِيءُ كُلُّ نَاكِثٍ بَيْعَةَ إِمَامٍ أَجْذَمَ حَتَّى يَدْخُلَ النَّارَ
Ali has narrated from his father from al-Nawfali from al-Sakuni who has narrated the following from:
Abu Abd Allah–asws narrates that the Messenger of Allah–saww has said, ‘On the Day of Judgment all the treacherous people will come with a leader, his mouth badly deformed, and end-up in the fire. All those breaking out ‘بَيْعَةَ’ allegiance of the Imam–asws will also come with their hand cut off and end up in the fire’.[1]
[1] Al-Kafi, Vol. 1, H. 2664