Beware lest ye suffer one another to be wrapt in veils by reason of the disputes which may, during your night, arise among you as a result of the problems ye encounter or in consideration of such matters as your loftiness or lowliness, your nearness or remoteness.
Thus have We firmly exhorted you — a befitting exhortation indeed — that haply ye may cleave tenaciously unto it and attain thereby salvation on the Day of Resurrection.

XVI, 19 - The Kitáb-I-Asmá