Musnad Abu Ya'la al-Mawsili 160:85

Abu Khaythama narrated to us, Sufyan ibn 'Uyaynah narrated to us, from al-'Ala' ibn 'Abd al-Rahman, from his father, from Abu Hurayrah, from the Prophet (may Allah bless him and grant him peace), who said: "The false oath is a promoter of the merchandise, [but] a destroyer of the profit."