قال رسول الله صلى الله عليه واله وسلم:

أف لكل مسلم لا يجعل في كل جمعة يوما يتفقه فيه أمر دينه ويسأل عن دينه.

The Prophet of Allah, peace be upon him and his family has said:

"Woe upon that muslim who does not allocate (at least) one day a week to the study of the details of his religion and to explore (the affairs) of his religion."
Bihar al-Anwar, Volume 1, Page. 176