The Companions (God be pleased with them) followed the pattern of the Glorious Qur’an and the Prophet’s Noble Tradition. They used to pray for each other in their absence, namely in the midst of the night. They considered such act as a token of good manners, for it is a sign that their hearts were free from rancor against their brothers and full of their love. In his Shu’ab al-Īmān (Affluents of Faith), al-Bayhaqī reported that Um ad-Dardā’ said:
“Abū ad-Dardā’ spent a night in prayer; throughout the night he shed tears and kept saying: ‘O Lord! Refine my manners even as You have created me in the best of fashions’ until dawn came. I said, O Abū ad-Dardā’! Your invocation throughout this night was exclusively about good manners. He said, ‘O Um ad-Dardā’! The Muslim servant may refine his manners until the latter enable him to be admitted to Paradise. He may, on the other hand, spoil his manners until the latter make him enter Hell. Furthermore, the Muslim servant may have his sins forgiven while he is asleep.’ I said, How is that, O Abū ad-Dardā’? He said, ‘His brother stands up at night for prayer, prays to God—Exalted be He—Who answers his prayers and prays for his brother and God answers his prayers too.