The Albaani Site

Questioner: Is it allowed for the Imaam of a mosque or a daa’ee … and he is leading the people in prayer for taraweeh … between rak’ahs there is a break … and he gives them a reminder about certain issues, about performing the prayer well, for example, and following the Prophet ﷺ, and bringing their attention to innovations and issues related to shirk, giving them a reminder, ya’ni?

Al-Albaani: The answer is that it is allowed and not allowed. If the admonition or warning or the order to do good or forbid evil is concerning an incident that happened to occur, then this is a must.

As for doing it as a routine or habit after every four rak’ahs, for example, or more than that or less where the Imaam gives a dars, then this is against the Sunnah.

If a situation happens to occur then it is wajib to warn people of it, as for making that a habit/custom, then standing or praying taraweeh is an unadulterated form of worship, where a Muslim turns to Allaah عز وجل with all his body, his core, his intellect and heart, this is the goal of the night prayer, the prayer in Ramadan.

As for making it a habit to have a sitting [to give a reminder] after every two rak’ahs or four, then this is something the Prophet ﷺ did not do.

Al-Hudaa wan-Noor, 656. [3/7/125]

Also see here and here and here.