It is narrated from Hazrat Abu Huraira (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: The meaning of your oath that will be considered valid is the one which your companion (the one demanding the oath) also confirms.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 8378
Hadith Gradingحکم دارالسلام:حديث صحيح، م: 1653، وهذا إسناد ضعيف جداً، عبدالله ابن سعيد متروك