And they ask you (O Muhammad SAW) concerning the Ruh (the Spirit); Say: "The Ruh (the Spirit): it is one of the things, the knowledge of which is only with my Lord. And of knowledge, you (mankind) have been given only a little."
They ask you about "the spirit".3 Say: "The spirit descends
by the command of my Lord, but you have been given only a little knowledge."
Tafheem-ul-Quran - Abul Ala Maududi
And they ask you, [O Muḥammad], about the soul. Say, "The soul is of the affair [i.e., concern] of my Lord. And you [i.e., mankind] have not been given of knowledge except a little."