Al-Maaida 5:44

We sent down the Torah which contains guidance and light; the prophets who submitted themselves to Allah were judging by it for the Jews, and so did the rabbis[40] and scholars because they were entrusted to protect the Scripture of Allah, and they were witnesses to it. So do not fear people but fear Me, and do not trade My verses for a small price[41]. Whoever does not judge according to what Allah has revealed, it is they who are the disbelievers.

[40] Al-Rabbāniyyūn (sing. rabbānī) are men of extensive knowledge, both religious and worldly. This includes the wise scholar, the mindful jurisprudent, the reforming teacher, and the person who enjoins others to uphold the teachings of religion.
[41] The guardians of Divine law should bear the fear of Allah first and foremost and not that of fellow men, nor are they to be swayed by bribes and worldly gains.

Indeed, We sent down the Torah, in which was guidance and light. The prophets who submitted [to Allāh] judged by it for the Jews, as did the rabbis and scholars by that with which they were entrusted of the Scripture of Allāh, and they were witnesses thereto. So do not fear the people but fear Me, and do not exchange My verses for a small price [i.e., worldly gain]. And whoever does not judge by what Allāh has revealed - then it is those who are the disbelievers.

44. Verily, We did send down the Taurât (Torah) [to Mûsâ (Moses)], therein was guidance and light, by which the Prophets, who submitted themselves to Allâh’s Will, judged for the Jews. And the rabbis and the priests [too judged for the Jews by the Taurât (Torah) after those Prophets], for to them was entrusted the protection of Allâh’s Book, and they were witnesses thereto. Therefore fear not men but fear Me (O Jews) and sell not My Verses for a miserable price. And whosoever does not judge by what Allâh has revealed, such are the Kâfirûn (i.e. disbelievers - of a lesser degree as they do not act on Allâh’s Laws).[13]

[13] (V.5:44) For different degrees of Kufr (Disbelief) see Appendix 2, "Polytheism and Disbelief".

Lo! We did reveal the Torah, wherein is guidance and a light, by which the prophets who surrendered (unto Allah) judged the Jews, and the rabbis and the priests (judged) by such of Allah's Scripture as they were bidden to observe, and thereunto were they witnesses. So fear not mankind, but fear Me. And My revelations for a little gain. Whoso judgeth not by that which Allah hath revealed: such are disbelievers.