Answered by Ustadh Tabraze Azam
Question: Many times we actually lose our mindfulness during prayer because of thoughts in our mind while having prayed outwardly in a correct manner. Does this require to repeat prayer?
Answer: Wa alaikum assalam wa rahmatullahi wa barakatuh,
I pray that you are in the best of health and faith, insha’Allah.
No, being inattentive during the prayer does not invalidate it as long as the integrals are performed.
As for having presence of heart, this is from the sunnas and proper manners of praying. Ask Allah to increase your presence, and take the means of doing so.
And Allah alone gives success.
Checked & Approved by Shaykh Faraz Rabbani