Musnad Ahmad

It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) had a document written regarding the details of Zakat, but before sending it to his governors, the Prophet (peace and blessings be upon him) passed away. The Prophet (peace and blessings be upon him) had placed this document with his sword (in its sheath). After the Prophet’s (peace and blessings be upon him) passing, Sayyiduna Abu Bakr (may Allah be pleased with him) continued to act upon it until he passed away, then Sayyiduna Umar (may Allah be pleased with him) also continued to act upon it until he too passed away. In that document, it was written that for five camels, one goat is obligatory, for ten, two goats, for fifteen, three, for twenty, four, and for twenty-five, one bint makhad (a young she-camel) is obligatory. Abdullah bin Ahmad says: My father said: Upon reaching this point, I encountered some excuse in the gathering of Abad bin Awam; I wrote the hadith completely, but I think I did not understand some part of it, therefore I became doubtful about the rest of the hadith, due to which I left it.