Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates: Aqra’ bin Habis Tamimi saw the Noble Prophet (peace and blessings be upon him) kissing Sayyiduna Imam Hasan (may Allah be pleased with him), so he said: I have ten children. I have never kissed any one of them. The Noble Prophet (peace and blessings be upon him) said:“He who does not show mercy will not be shown mercy.”