Maliks Muwatta Book 058, Hadith Number 004.

Section : Stimulation of Desire for Sadaqa.

Malik related to me from Zayd ibn Aslam from Amr ibn Muadh al-Ashali al-Ansari that his grandmother said, "The Messenger of Allah, may Allah bless him and grant him peace, said, 'O trusting women! Let none of you despise giving to her neighbour even if it is only a roasted sheep's trotter."