In Sufism, a rabbani (Arabic: رَبَّانِيّ; 'Godly person'), or ribbi, is a wasil who is attached to Allah.
[1][2] The term rabbani or ribbi is cited in the Quran into several Āyāt, as: English: It does not behoove any human that Allah should give him the Book, judgement and prophethood, and then he should say to the people, ‘Be my servants instead of Allah.’ Rather [he would say], ‘Be a godly people, because of your teaching the Book and because of your studying it.
(Quran: 3:79) English: How many a prophet there has been with whom a multitude of godly men fought.
The prophets, who had submitted, judged by it for the Jews, and so did the godly people and the scribes, as they were charged to preserve the Book of Allah and were witnesses to it.
(Quran: 5:44) English: Why do not the godly people and the scribes forbid them from sinful speech and consuming illicit gains?