Verš 49:2

Vy, kteří věříte! Nezvedejte hlas svůj nad hlas prorokův a neobracejte se k němu s řečí hlučnou, tak jak to děláte mezi sebou, aby se skutky vaše nestaly marnými, aniž o tom budete mít tušení.

Tafsir al-Jalalayn

The following was revealed regarding those who raised their voices in the presence of the Prophet (s): O you who believe, do not raise your voices — when you [want to] speak — above the voice of the Prophet, when he is speaking, and do not shout words at him, when you [wish to] confide in him, as you shout to one another, but [speak] lower than that, out of reverence for him, lest your works should be invalidated without your being aware, that is to say, for fear of this [happening] as a result of the raising of voices and the shouting mentioned.