Four Corruptions
It is reported that Muʿādh b. Jabal – Allāh be pleased with him – said:
“O people, there are four characteristics to come, whoever can avoid reaching them should do so.” [People] asked, “And what are they?” He replied, “There will come a time in which falsehood will rise, and a time will come in which a man will say, ‘By Allāh, I do not know what I am’, he will neither live nor die upon insight (knowledge of what he should be). And a time will come in which a man will start his day on one religion and end it on another. And a time will come when a man will be given wealth from the wealth Allāh provides, in return for saying what is wrong and false and for which Allāh will be angry with him.”
Ibn ʿAsākir, Tārīkh Dimishq 58:442
Also read
Related sayings.
Changing your religious stance from what you used to know to be right is a sign of misguidance and falling into fitnah.
A person of insight has deeper knowledge about some matters that others seem to feel safe from.