It is reported that Hudayfah radiAllahu anhu was asked, “What is the WORST Fitnah!” He replied: “The Good and Evil presented to you and you do not know which of them to follow” Source: Ibne Abu Shaybah. Al-Musannaf, Kitab Al-Fitan, article 38565 Critical Reasoning 1: What’s the Criteria to understand the right and the wrong? […]
They have hearts with which they do not understand, they have eyes with which they do not see, and they have ears with which they do not hear.