Nafi' (may Allah have mercy on him) said that Sayyiduna Ibn Umar (may Allah be pleased with them both) girded on the sword of Sayyiduna Umar (may Allah be pleased with him) on the day Sayyiduna Uthman (may Allah be pleased with him) was martyred, and it was ornamented. He said: I said: How much was its ornamentation? He said: Four hundred.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الزكاة / 7574