Sunan an-Nasa'i, Volume 6, Book 48, Hadith 5375 (DarusSalam) ⓘ
It was narrated that Abu Umamah bin Sahl said: "The pommel of the sword of the Messenger of Allah [SAW] was of silver."
أَخْبَرَنَا عِمْرَانُ بْنُ يَزِيدَ، قَالَ حَدَّثَنَا عِيسَى بْنُ يُونُسَ، قَالَ حَدَّثَنَا عُثْمَانُ بْنُ حَكِيمٍ، عَنْ أَبِي أُمَامَةَ بْنِ سَهْلٍ، قَالَ كَانَتْ قَبِيعَةُ سَيْفِ رَسُولِ اللَّهِ صلى الله عليه وسلم مِنْ فِضَّةٍ .
also referenced under: Hadith 5373 (Reference) & Book 48, Hadith 334 (In-Book)