Sayyiduna Ali (may Allah be pleased with him) narrates that Sayyiduna Abbas bin Abdul Muttalib (may Allah be pleased with him) sought permission from the Messenger of Allah (peace and blessings be upon him) to pay zakat before its due time, so the Prophet (peace and blessings be upon him) granted him permission for that. Yahya bin Ma'in says: Ismail bin Zakariya Khalaqani and Hajjaj bin Dinar Wasiti are both trustworthy.