It is narrated from Nafi' (may Allah have mercy on him) that some people from Iraq came to Sayyiduna Ibn Umar (may Allah be pleased with them both), and they saw a gold necklace on the neck of one of his maidservants (slave-girls), so they began to look at each other. Sayyiduna Ibn Umar (may Allah be pleased with them both) said: "You people’s eyes are very sharp when it comes to seeing evil."