(39) باب لاَ تُؤْخَذُ فِي الصَّدَقَةِ هَرِمَةٌ وَلاَ ذَاتُ عَوَارٍ وَلاَ تَيْسٌ إِلاَّ مَا شَاءَ الْمُصَدِّقُ
Narrated Anas:
Abu Bakr wrote to me what Allah had ordered His Apostle (about Zakat) which goes: Neither an old nor a defected animal, nor a male-goat may be taken as Zakat except if the Zakat collector wishes (to take it). (ES)
Reference (ES): Sahih al-Bukhari 1455 (ES)
In-book reference (ES): Book 24, Hadith 59 (ES)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 24, Hadith 535 (ES)