Muhammad bin Yahya bin Haban reported,

A man reported from his father Yahya that he was with Abdullah bin Umar, and that Abdullah bin Umar said to him during the time of fitnah, "You will come to regard killing as nothing." And the Messenger of Allah ﷺ said regarding a small group, "Two should not converse privately to the exclusion of their companion."

Ahmad 4871

Sahih

حدثنا يزيد أخبرنا يحيى يعني ابن سعيد

عن محمد بن يحيى بن حبان أخبره

أن رجلا أخبره عن أبيه يحيى أنه كان مع عبد الله بن عمر وأن عبد الله بن عمر قال له في الفتنة لا ترون القتل شيئا وقال رسول الله ﷺ للثمادة لا ينتجي اثنان دون صاحبهما

أحمد 4871صحيح
Contents
Reference
Commentary
Ayat
Collection
Musnad Ahmad
Book
Abdullah bin Umar
Numbering
Darussalam 4871
Ahmad 4871