Sahih Muslim Book 8, Hadith Number 3367.

Chapter: It is not permissible for a woman to abandon the bed of her husband.

Abu Huraira (Allah be pleased with him) reported Allah’s Messenger (May peace be upon him) as saying: By Him in Whose Hand is my life, when a man calls his wife to his bed, and she does not respond, the One Who is in the heaven is displeased with her until he (her husband) is pleased with her.