It is narrated from Sayyiduna Abdullah bin Mughaffal Muzani (may Allah be pleased with him) that the Prophet (peace and blessings of Allah be upon him) forbade throwing pebbles and said: "It neither kills the game nor harms the enemy, but it can gouge out an eye and break a tooth."
Hadith Referenceالادب المفرد / كتاب / 905
Hadith Gradingالألبانی:صحيح
Hadith Takhrij«صحيح : أخرجه البخاري ، كتاب الأدب : 6220 و مسلم : 1954 و أبوداؤد : 5270 و ابن ماجه : 3227»