What did Abu Bakr write to Anas, as commanded by Allah's Apostle (peace be upon him), regarding Zakat payments?
 Narrated Anas:                     Abu Bakr wrote to me what was made compulsory by Allah's Apostle 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.