When allegiance has been sworn to two caliphs
باب إِذَا بُويِعَ لِخَلِيفَتَيْنِ
Sahih Muslim, Book of The Book on Government(view book)
Sahih Muslim 1853
It has been narrated on the authority of Aba Sa'id al-Khudri that the Messenger of Allah ﷺ said: When oath of allegiance has been taken for two caliphs, kill the one for whom the oath was taken later.
وَحَدَّثَنِي وَهْبُ بْنُ بَقِيَّةَ الْوَاسِطِيُّ، حَدَّثَنَا خَالِدُ بْنُ عَبْدِ اللَّهِ، عَنِ الْجُرَيْرِيِّ، عَنْ أَبِي، نَضْرَةَ عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ، قَالَ قَالَ رَسُولُ اللَّهِ ﷺ " إِذَا بُويِعَ لِخَلِيفَتَيْنِ فَاقْتُلُوا الآخَرَ مِنْهُمَا " .
Classification
Sahih (Authentic)