Narrated Abu Hurairah: The Messenger of Allah (ﷺ) as saying: Your oath should be about something regarding which your companion will believe you.Musaddad said: 'Abd Allah b. Abi Salih narrated to me.Abu Dawud said: Both of them refer to the same person: 'Abbad b. Abu Salih and 'Abd Allah b. Abi Salih.