Amr bin Dinar (may Allah have mercy on him) said: I heard a man asking Jabir bin Abdullah (may Allah be pleased with them both) about zakah on jewelry, and Jabir (may Allah be pleased with them both) said: "No." Then he said to him: Even if it reaches a thousand dinars? Jabir (may Allah be pleased with them both) said: "That is a lot."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7539