Sa'sa'a bin Sohan · The Book of Adornment

"I heard Mu'awiyah say to a group of Muhajirun and Ansar who were around him: 'Do you know that the Messenger of Allah forbade wearing silk?' They said: 'By Allah, yes.' He said 'And (he forbade) wearing gold unless it was broken (into smaller pieces)?' They said: 'Yes.'" 'Ali bin Ghurab contradicted him; he reported it from Bahais, from Abu Shaikh, from Ibn 'Umar.

"I heard Ibn 'Umar say: 'The Messenger of Allah forbade wearing gold unless it is broken (into smaller pieces).'"