By going to the Masjid or intending to pray the prayer of now, this is your niyyah!

i used to do niyya orally for salah.now i understood it should be done by heart.now iam trying to do.but my tougue is moving minimally during intension.what to do?whether my prayr is valid.because of this iam repeating niyya several time.pls giv me a solution?

Prayer |