In The Name of Allah, The Most Merciful, The Bestower of Mercy.

Allah, The Exalted, said:

وَٱلَّذِینَ إِذَا ذُكِّرُوا۟ بِـَٔایَـٰتِ رَبِّهِمۡ لَمۡ یَخِرُّوا۟ عَلَیۡهَا صُمࣰّا وَعُمۡیَانࣰا

And those who, when they are reminded of the Signs of their Lord, fall not deaf and blind thereat]. [Al-Furqan. 73]

Imam Muhammad ibn Saalih Al-Uthaymeen, may Allah have mercy upon him, commented on this Ayah:

The identity of the reminder giver remains undisclosed, encompassing all individuals who provide reminders. This serves to demonstrate that the acceptance of the reminder is not contingent upon the particular person delivering it, as some only accept the truth when it is presented by a specific individual. If the reminder comes from someone else, it is not acknowledged, similar to how the people of the Scripture treated the Prophet, peace and blessings of Allah be upon him, as well as others who only accept the truth from a particular group or person. Allah said:

وَلَئِنْ أَتَيْتَ الَّذِينَ أُوتُوا الْكِتَابَ بِكُلِّ آيَةٍ مَا تَبِعُوا قِبْلَتَكَ

And even if you were to bring to the people of the Scripture all the Signs, they would not follow your Qiblah (prayer direction)]. [Al-Baqarah. 145]

So here, Allah says: [إِذَا ذُكِّرُوا – And those who, when they are reminded]. The individual providing the reminder remains unknown (in this Ayah), indicating their acceptance of the truth based on its validity and not due to who says it. The acceptance or rejection of the reminder is not contingent upon the person delivering it, but rather on the content of the reminder itself. This underscores the benefit of not disclosing the doer of the action (i.e. the reminder giver). [1]

NB: There is an exception in this matter and that is a Sunni, Athari – adherent to the Sunnah – does not lend an ear to Ahlul Bidah. Shu’aib, may Allah have mercy upon him, said: I said to Ibn Seereen: “What is your view concerning listening to the people of desires (i.e. ahlul bidah)?” He said: “We neither listen to them nor honour them”. [2]

[1] An Excerpt from “Tafseer Surah Al-Furqan. Ayah 2. Shared by our Salafi brother and colleague Abdul Malik (Abu Zakariyyah Al-Congoli (may Allah preserve him)

[2] Siyar A’laam An-Nubulaa. 4/611