Sahih Bukhari Volume 3, Book 51, Hadith 2630

حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ، حَدَّثَنَا مَالِكٌ، عَنْ أَبِي الزِّنَادِ، عَنِ الأَعْرَجِ، عَنْ أَبِي هُرَيْرَةَ ـ رضى الله عنه ـ أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم قَالَ ‏"‏ نِعْمَ الْمَنِيحَةُ اللِّقْحَةُ الصَّفِيُّ مِنْحَةً، وَالشَّاةُ الصَّفِيُّ تَغْدُو بِإِنَاءٍ وَتَرُوحُ بِإِنَاءٍ ‏"‏‏.‏ حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ وَإِسْمَاعِيلُ عَنْ مَالِكٍ قَالَ نِعْمَ الصَّدَقَةُ‏.‏

Narrated By Abu Huraira : Allah's Apostle 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 By Malik : Maniha is a good deed of charity.