Through his chain of authorities...
Through his chain of authorities, he, peace be on him, said: [Allahs Messenger, may Allah bless him and his family, said:] An example of the believers dignity with Allah is that Allah does not appoint a term for his span of life. However, if he concerns about an offense, Allah makes him die due to (His) mercy (toward him). The meaning of this tradition is that Allah prolongs the believers life, but if he commits a sin, Allah decreases his life.
Imām al-Ridā said: Refrain from offenses and Allah will prolong your span of life. Through his chain of authorities, he, peace be on him, said: [Allahs Apostle, may Allah bless him and his family, said:] Cling to good manners, for the well-mannered are certainly in the Garden.
One of the most important Islamic principles is good manners, and it is one of the most beautiful and perfect qualities of the Prophet, may Allah bless him and his family, by which he was distinguished from the rest of the prophets. Islam has emphasized on the necessity of having such a noble quality. During their Bedouin life, nations were distinguished from each other by their bodily strength. When they progressed, they were distinguished from each other by their knowledge.
And when they advanced, they were distinguished from one another by good manners. Through his chain of authorities, he, peace be on him, said: [Allahs Messenger, may Allah bless him and his family, said:] If the servant knows what he will have due to good manners, then he will come to know that he is in no need (of anything) except good manners.
In this tradition there is a summons to clinging to good manners and Allah, the Most High, has prepared abundant reward for him who has this noble quality. Through his chain of authorities, he, peace be on him, said: [Allahs Apostle, may Allah bless him and his family, said:] When the Day of Resurrection occurs, Allah will manifest Himself to His servant and shows him his sins one by one, and then He will forgive him.
Allah will not inform about the servants sins neither an angel brought nigh nor a messenger sent out. He will cover them from everyone, and then he will say to them: Be good deeds! This traditions gives an account of Allahs plentiful mercy and his inclusive pardon toward His sinful servants. We ask Him, the Most High, to include us in His mercy.