(34) باب لاَ يُجْمَعُ بَيْنَ مُتَفَرِّقٍ وَلاَ يُفَرَّقُ بَيْنَ مُجْتَمِعٍ
Narrated Anas:
Abu Bakr wrote to me what was made compulsory by Allah's Messenger (ﷺ) and that was (regarding the payments of Zakat): Neither the property of different people may be taken together nor the joint property may be split for fear of (paying more, or receiving less) Zakat.
Reference: Sahih al-Bukhari 1450
In-book reference: Book 24, Hadith 54
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 24, Hadith 530