Narrated Thawban:"When (the following) was revealed: And those who hoard up gold and silver... (9:34)" He said: "We were with the Messenger of Allah (ﷺ) during one of his journeys, so some of his Companions said: (This) has been revealed about gold and silver, if we knew which wealth was better then we would use it. So he (ﷺ) said: 'The most virtuous of it is a remembering tongue, a grateful heart, and a believing wife that helps him with his faith

English translation · Jami' at-Tirmidhi