The early believers prayed not…

The early believers prayed not to be a Fitnah (tribulation) for the disbelievers- meaning that the disbeliever would be rejecting Islam due to something the believer did, or they would get punished badly in the Afterlife due to torturing the believers, or some other similar action.

So look at this and compare it with the situation and mindset of some groups or individuals today, who jump at the chance of saying the non-Muslim interlocutor will definitely be in Hellfire, and that the Hujjah (evidence) was presented to them after a 5 minute discussion but was rejected. We are not talking in here about the theological evidences for what makes belief obligatory, but rather about the attitude the Muslim should take with regards to the non-Muslim and the potential of his eternal salvation when discussing Islam with the non-Muslim.