Sahih Muslim

Qabisa b. al-Mukhariq and Zuhair b. 'Amr reported:When this verse was revealed:"" And warn thy nearest kindred,"" the Messenger of Allah (ﷺ) set off towards a rock of the hill and ascended the highest of the rocks and then called: 0 sons of 'Abd Manaf! I am a warner; my similitude and your similitude is like a man who saw the enemy and went to guard his people, but, being afraid they might get there before him, he shouted: Be on your guard