بِسْمِ اللهِ الرَّحْمٰنِ الرَّحِيْمِ
Why would you not when this is the sole thing important.
Of course, there is a way, do not believe that killing disbelievers is an answer, it is of being the best example.
There will always be those that they push you towards evil, just so that they can say, is that who we should follow?
Deluded are they can not hide, indeed are the former people alive, you hear nothing from them, you can not make the deaf hear except by His permission.
So, face the fact, the Hour is so close, it is always worth a mention and those who say, there is no such thing, then say, Indeed wait, we are with you waiting.