Sometimes when I pray behind the Imam, the Imam will start reading the fatihah almost immediately. Should I finish the opening du'a, or stop and listen to the Imam's recitation?

Answer

Praise be to Allah.

What you should do is listen to the imaams recitation, because Allaah says (interpretation of the meaning): So, when the Quraan is recited, listen to it, and be silent that you may receive mercy. [al-Araaf 7:204].

And Allaah knows best.

Source: Sheikh Muhammed Salih Al-Munajjid
