Humran says that once we were with Sayyiduna Uthman (may Allah be pleased with him), he called for water and performed ablution, and after finishing he began to smile and said: "Do you know why I am smiling?" Once the Prophet (peace and blessings be upon him) also performed ablution in the same way as I did, and he also smiled and asked: "Do you know why I am smiling?" We said: "Allah and His Messenger know best." He said: "When a servant performs ablution and completes it well, and then starts the prayer and performs it perfectly, then after finishing the prayer, he becomes like the day his mother gave birth to him."