Musannaf Ibn Abi Shaybah

Hazrat Haroon bin Abi Waqee’, narrates from his father, who says that when this verse { الْیَوْمَ أَکْمَلْتُ لَکُمْ دِینَکُمْ } was revealed—the narrator says it was the day of the Greater Pilgrimage—he says Hazrat Umar (may Allah be pleased with him) began to weep. So the Messenger of Allah (peace and blessings be upon him) asked Hazrat Umar (may Allah be pleased with him): “What is making you weep?” Hazrat Umar (may Allah be pleased with him) replied, O Messenger of Allah (peace and blessings be upon him)! What has made me weep is that previously we were increasing in our religion (in hope). But when this religion has become complete, the fact is that whenever something becomes complete, then it begins to decline. The Prophet (peace and blessings be upon him) said: “You have spoken the truth.”