Imam Reza (a.s) said: “Imam Hassan (a.s) and Imam Hussein (a.s) were not on speaking terms with each other. Once Muhammad ibn Hanifeh went to see Imam Hussein (a.s) and asked: “Why do you not go to see Imam Hassan (a.s). He is older than you are.” Imam Hussein (a.s) said: “I heard from my grandfather-the Prophet of God- that whenever two break off relations, God will take to Heaven the one who first goes to greet the other one to make up. I do not want to go to Heaven sooner than my brother.” Then Muhammad ibn Hanifeh went to Imam Hassan (a.s) and told him what Imam Hussein (a.s) had said: “He said: “He is right. Let's go to see him.”