Imam al-Sadiq (AS) said, ‘Whoever performs a two unit prayer fully knowing what he is saying in it, gets up from it with not a single sin left [unforgiven] between him and Allah.
Al-Kāfi #987“Narrated to me the one who had heard abu ‘Abd Allah (a.s.), say, ‘Whoever performs a Salah (prayer) of two Rak’ah in which he is aware of...