It is narrated from Sayyiduna Bara’ bin Azib (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: Whoever gives a gift of silver, or a gift of milk, or guides someone on the road, he will receive the reward of freeing a slave. And whoever says: "Laa ilaaha illallaahu wahdahu laa shareeka lahu, lahul-mulku wa lahul-hamdu wa huwa ‘alaa kulli shay’in qadeer," he will also be like one who frees a slave.