For the Audience to call out the Takbeers during the End Khutbah

Q: Salaah-565: Can the audience also call out the Takbeers when the Khateeb does so during the Khutbah?

Answer: Yes, the audience may do so silently. They may also recite the Durood in their hearts when the Khateeb recites the verse:

Fatawa Rahimiyyah (Du?aa on pg. 401 vol.2)

And Allaah knows best what is most correct.

Fatawa Rahimiyyah vol.2