Sayyiduna Usamah bin Sharik (may Allah be pleased with him) said: I was sitting with the Messenger of Allah (peace and blessings be upon him) when Bedouins came from every direction and said: O Messenger of Allah, is there any harm upon us in such-and-such? Then the narrator related the rest of the (full) hadith.
Hadith Referenceالمعجم الكبير للطبراني / باب الألف / 464