تفسير : (a guidance) from error (and a mercy) shielding from chastisement (for the good) for the sincere ones who believe in allah's divine oneness,
Jalāl al-Dīn al-Maḥallī
تفسير : it is, a guidance and a mercy (read nominative rahmatun; the popular accusative reading [rahmatan] would make it a circumstantial qualifier referring to āyāt, ‘signs’, the operator of which being the implicit demonstrative import of tilka, ‘those’) for the virtuous,