Fear of God
This mutual love can be witnessed through an incident related to Hazrat Abdur Rahman (ra) bin Auf. One evening, food was brought before Hazrat Abdur Rahman (ra) bin Auf. Different kinds of dishes were presented before him from which he took a morsel to eat. Just as he placed the morsel of food in his mouth, a state of great anguish and fervency came over him. He left the food saying, “Mus‘ab (ra) bin Umair was martyred in Uhud and he was better than I. He was buried in his own cloak” i.e. they did not have a cloth with which to bury him, “therefore they buried him using the cloak he was wearing. The condition of even that cloth was that if they would cover his legs, his head would become uncovered, and if his head would be covered, then his legs would become uncovered.” Hazrat Abdur Rahman bin Auf (ra) then stated, “Hamza (ra) was martyred and he was better than I. We have been bestowed wealth and affluence. I fear lest we have been bestowed the reward for our deeds in this life.” After this he began to weep and left his food. Such was the fear of God they had within themselves.
(Roshan Sitarey az Ghulam Bari Saif Sahib, Vol. 2, pp. 111-112)