The Prophet ﷺ took some silk in his right hand and some gold in his left hand, then he said: ʿThese two are forbidden for the males of my ummah.” (Using translation from Aḥmad 935)
أَنَّهُ سَمِعَ عَلِيَّ بْنَ أَبِي طَالِبٍ يَقُولُ إِنَّ رَسُولَ اللهِ ﷺ أَخَذَ حَرِيرًا فَجَعَلَهُ فِي يَمِينِهِ وَأَخَذَ ذَهَبًا فَجَعَلَهُ فِي شِمَالِهِ ثُمَّ قَالَ «إِنَّ هَذَيْنِ حَرَامٌ عَلَى ذُكُورِ أُمَّتِي»