Et ton Seigneur est plus Connaisseur de ceux qui sont dans les cieux et sur la Terre. Et parmi les Prophètes, Nous avons donné à certains plus de faveurs qu’à d’autres. Et à David nous avons donné les Psaumes (Az-Zabûr)." 1
These readings convey the same meaning, but the second way of describing the revelation to Prophet Dawud (pbuh) is a plural of the first, or the plural of zabr, meaning something written excellently [al-Mahdawi]. Since this revelation is typically equated with the Book of Psalms, the singular and plural expressions both make sense.
He has revealed to you ˹O Prophet˺ the Book in truth, confirming what came before it, as He revealed the Torah and the Gospel
Explication:
These readings convey the same meaning, but the second way of describing the revelation to Prophet Dawud (pbuh) is a plural of the first, or the plural of zabr, meaning something written excellently [al-Mahdawi]. Since this revelation is typically equated with the Book of Psalms, the singular and plural expressions both make sense.