Sometimes when a sister recites and completes surah al fatiha in prayer she feels like she did not have good concentration so she repeats surah al Fatiha again. Is this wrong and waswaas?
May Allah bless you.
Shaikh Ibn Baz says it is not from the Sunnah to repeat Surah al-Fatiha except if you recited a wrong verse so then you repeat it in order to correct it.
In prayer we keep striving to achieve concentration. When you find yourself not concentrating (distracted) in prayer make Istiadha (you seek refuge in Allah from Shaytan ar-Rajim) and concentrate again.