Repeating the prayer in which one did not attain khushu'

Question:
If I pray a prayer and afterward I do not feel that there was any khushu' in it, and I do not feel that there was any khushu', is it possible for me to repeat it?

Answer:
No, if you have prayed, that is it. If you have prayed, you have performed the prayer. Even if the khushu' in it was little, it is finished. But in the future, you should maintain the khushu' and the... Yes. If this door were opened, it would lead to waswas (whispers of doubt) among people. One person would say, "By Allah, I did not have khushu', so I will repeat the prayer." This is waswas. If a person prays, that is it; he does not repeat it, unless he performed it without wudu' or neglected one of its conditions, in which case he repeats it.
As for if he performed it with its conditions, its obligations, and its pillars, it is valid, even if his khushu' in it was little, or even if he was distracted by waswas or forgetfulness. His prayer is valid. What is affected is only the reward. The reward is that a person prays and gets no reward from his prayer, neither little nor much. He may get a quarter, a fifth, a tenth, a half, or the full reward, according to the presence of his heart. Hmm.
So the difference is only in the reward. As for the prayer, if it is performed with its conditions, its obligations, and its pillars, it is not repeated, even if there was no khushu' in it. Yes.