The ruling on doubt regarding ritual impurity during prayer

Question:
May Allah reward you. Honorable Shaykh, this questioner says: During the prayer or while reciting the Qur'an, I feel the urge to pass gas, but I hold it in. At that point, I feel that a very light gas is coming out of me, so I doubt whether I have broken my state of ritual purity or not, and I leave the prayer or stop reciting the Qur'an. I know that this does not happen to me except when I have the urge to pass gas. What should I do? And what is the condition in this matter?

Answer:
First, do not enter the prayer until you have relieved yourself of these matters: the urine, the stool, and the saliva. Or, it is obligatory to perform the prayer of peace without the prayer of the month. Presence of food, and not while he is struggling with the two calls for urination and pressure. So, relieve yourself of these things before you enter the prayer. Relieve yourself of them, fast, and pray in the prayer. As for if you have entered the prayer or you are in a state of certain ritual purity, then doubt does not invalidate the purity, and you do not leave the prayer due to doubt. Rather, you build upon the certainty. This is governed by the saying of the Messenger (peace and blessings be upon him) If something is uncertain to him, did he pass something or not? He does not leave until he hears a sound or finds the certainty. If you find that it is the reality, it is not doubt but certainty. As for mere doubt, this is not accepted for the ablution nor for the prayer. Build upon the certainty.