Sahih Bukhari

Narrated Abu Huraira:Allah's Messenger (ﷺ) said, ""What a good Maniha (the she-camel which has recently given birth and which gives profuse milk) is, and (what a good Maniha) (the sheep which gives profuse milk, a bowl in the morning and another in the evening) is!"" Narrated Malik: Maniha is a good deed of charity