[2] i.e., the Qur’an. [3] The difference between ‘nazzala’ (sent down) which is mentioned only with regards to the Qur’an, which signifies that the action took place in installments over a long period of time. Whereas ‘anzala’ (sent down) which is said with regards to the Torah and the Gospel, which happened once and as a whole. [Al-Tabarī].
[4] People of true knowledge are lauded here with the worthy epithet “al-rāsikhūna fī al-‘ilm”(the well-grounded in knowledge); they know enough and are so humble as to say: “Allah knows best”, unlike others.
[5] ’Umm Salamah (رضي الله عنها) reported: “The Prophet (ﷺ) used to pray most by saying: “O He Who changes hearts, make my heart firm in Your religion” (yā Muqallib al-qulūb, thabbit qalbī ‘alā dīnik). When she asked him the reason for this, he (ﷺ) replied, saying: “Umm Salamah, know that every human’s heart is between two Fingers of Allah. Whoever He wills, He makes steadfast, and Whoever He wills He causes to deviate”. [Al-Tirmidhī: 3522]