Narrated Sa'id ibn Zayd: We were with the Prophet (ﷺ). He mentioned civil strife (fitnah) and expressed its gravity. We or the people said: Messenger of Allah, if this happens to us it will destroy us. The Messenger of Allah (ﷺ) said; No. It is enough for you that you would be killed. Sa'id said: I saw that my brethren were killed

English translation · Sunan Abu Dawud