It is narrated from Sayyiduna Amr bin Awf bin Milhah al-Muzani (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) heard a man saying: Take it, it is khadirah (green). So the Prophet (peace and blessings be upon him) said: "Here I am! We have taken a good omen from what came out of your mouth. Take us to Khadirah (the place of that name)." So they went out to it, and no sword was drawn there (that is, there was no fighting).
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14095