Sayyiduna Anas bin Malik (may Allah be pleased with him) says: I heard the Prophet (peace and blessings be upon him) say: "He is not a believer whose neighbour is not safe from his bawa'iq (i.e., his evil)."
Abu Ya'la recorded it; its chain contains a narrator, Ibn Ishaq, and he is a mudallis (one who obscures his sources).