alaHazrat says in fatawa ridawiya that reciting the qur'an correctly in salah is fard. the minimum requirement is that the letters can be told apart. sayyid na'imuddin muradabadi says a similar thing under the tafsir of warattilil qur'aana tarteela. and mawlana abu'l hasanat ahmad qadri in his muqaddima of a work on tajweed.
now, what if someone does not know whether, for example, waSbir [have patience] is with a seen or a Saad. they then cannot differentiate.
carrying on from this. one does know, fo example, that walaD Daalleen is with a Daad and not a daal or Salah is with a Saad not a Seen; but in their qir'at, they do not/cannot differentiate. what is the state of their salah?
now, what if someone does not know whether, for example, waSbir [have patience] is with a seen or a Saad. they then cannot differentiate.
carrying on from this. one does know, fo example, that walaD Daalleen is with a Daad and not a daal or Salah is with a Saad not a Seen; but in their qir'at, they do not/cannot differentiate. what is the state of their salah?