Narrated Abu Umama: Some people conquered many countries and their swords were decorated neither with gold nor silver, but they were decorated with leather, lead and iron.
Hadith ReferenceSahih Bukhari / The Book of Jihad (Fighting For Allah’S Cause) / Hadith: 2909
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة