Sah?bah ( - ) followed his practice and so did the T?bi‘?n and by other people’. (1)
[7/ 61] Doing Thuhr Sal?t after the Jumu‘ah Sal?t:
Doing Thuhr Sal?t after the Jumu‘ah Sal?t is impermissible, for it is one of the Islamic principles that All?h ( - عز وجل -) never enjoined two obligatory Salaw?t to be done at the same time. Whoever lives in an area in which there is a mosque in which a Jumu‘ah Sal?t is established, he must attend it unless one believes that attending this Sal?t is invalid due to the lack of some of its conditions; then one must not engage in a worship which one believes that it is invalid -even if one’s belief is wrong- for this would be considered as disobedience for All?h ( - عز وجل -). If one did this Sal?t with such a belief, he must do Thuhr Sal?t but must never establish another congregation after the first one for this would excite disunity amongst muslims.
However, if one does the Jumu‘ah Sal?t believing that it is valid, one must not perform Thuhr Sal?t afterwards, not individually nor in congregation for doing so contradicts the aforementioned Islamic principle which some Fuqah?’ considered an affirmed one.
Besides, it was never transmitted that any of the Sah?bah or Salaf scholars ever performed Thuhr Sal?t after doing Jumu‘ah Sal?t. Ash-Sh?fi‘?, for instance, once came to Baghd?d and never did Thuhr Sal?t after the Jumu‘ah Sal?t though there were many mosques. Even if he had done so, his act is not a Shar‘ that every muslim must follow.
Those who perform Thuhr Sal?t after the Jumu‘ah Sal?t falsely believe that such an act is something recommended for it includes doing a good deed; namely performing Sal?t. On the contrary, such an act bears a dangerous destructive effect on people for it includes performing an extra worship that All?h ( - عز وجل -) never enjoined or
(1) “As-Saylul Jarr?r” (vol. 1 p. 301).