Abu Dawud Book 1, Hadith Number 298.

Chapter : A person who is sexually defiled is permitted to eat anything before washing.

Narated By ‘Aisha, Ummul Mu’minin : Fatimah daughter of AbuHubaysh came to the Prophet (PBUH) and narrated what happened with her. He said: Then take a bath and then perform ablution for every prayer and pray.