It is narrated from Hazrat Nubaisha Hudhali that the Prophet (peace and blessings be upon him) said: When a Muslim performs ghusl (ritual bath) on the day of Jumu'ah, then sets out towards the mosque and does not cause any harm to anyone, then if he sees that the Imam has not yet come out, he offers prayer as much as he is able; and if he sees that the Imam has arrived, he sits and listens attentively and silently to his words until the Imam completes his Jumu'ah and sermon. Then, if all his sins are not forgiven for this Jumu'ah, it will surely become an expiation for his sins until the coming Jumu'ah.