Hadith.231 – (Al-Hussain ibn Khalid asked Abu Al-Hasan Al-Awwal عليه السلام) narrates that: ‘It is narrated that 'Allah سبحانه وتعالى, the Blessed and Exalted, completes the obligatory prayer with the supererogatory prayer, completes the obligatory fasting with the supererogatory fasting, and completes the wudu (ablution) with the ghusl (ritual bath) of Jumu’ah.’.