Sayyiduna Ibn Abbas (may Allah be pleased with them both) said that the Messenger of Allah (peace and blessings be upon him) said: "In shibh al-'amd the diyah is of the heavy (mughallazah) kind, and the one who commits it is not killed in retaliation. It happens like this: Satan stirs up trouble among the people of a tribe, and stones are thrown blindly among them, without any grudge and without anyone carrying weapons."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنايات / 16003