Issue 577: When a person doubts over performing a part of their prayers, that is, they doubt whether they have performed that part, if they have not entered the next part yet, that is, if the time sequence for performing that part has not passed yet, they must perform it, but if the doubt has been aroused after entering the next part of the prayers, that is, if the time and sequence for performing that part has passed, such a doubt must be ignored and one must continue their prayers, and their prayers will be valid.

Issue 578: If, after performing a part of prayers, a person doubts about its correctness, that is, they doubt whether they have performed that part correctly, they must ignore their doubt and consider it as valid and correct, and continue their prayers. Such prayers will be valid.