Oaths and Vows (Kitab Al-Aiman Wa Al-Nudhur)

Dawud :: Book 21 : Hadith 3248

Narrated Aisha, Ummul Mu'minin:

The Apostle of Allah (peace_be_upon_him) said about the futile oath: It is man's speech in his house: No, by Allah, and Yes, by Allah.