Muhammad bin Ziyad narrates: I heard Sayyiduna Abu Umamah (may Allah be pleased with him) when he was asked about the ornamentation of a sword: "Is it also counted as treasure?" He replied: "Yes, it counts as treasure." A man said: "This is a foolish old man whose mind has gone." Sayyiduna Abu Umamah (may Allah be pleased with him) said: "I have told you only what I have heard."
Al-Tabarani recorded it in al-Mu'jam al-Kabir. Its chain contains a narrator, Baqiyyah, who is thiqah (trustworthy) but a mudallis (one who conceals defects in the chain).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الزكاة / 4357