The Messenger of Allah ﷺ told us two narrations: I have seen one of them, and I am waiting for the other.
He told us: (1) “Trustworthiness was sent down into the depths of peoples hearts; then they learned it from the Quran, then they learned it from the Sunnah.”
And then he told us about its being taken away. He said: (2) “A man will sleep a while, and trustworthiness will be taken from his heart, leaving its trace like the slight marks. Then he will sleep again, and it will be taken away, and its trace will remain like a callus you develop on your foot and it blisters: you see it raised up, yet there is nothing inside. Then people will come to trade with one another, and hardly anyone will fulfill the trust, until it is said: ‘Among the tribe of so-and-so there is a trustworthy man.’ And it will be said of a man: ‘How intelligent is he! How refined is he! How strong and capable is he!’ while there is not in his heart even the weight of a mustard seed of faith.”
There was a time that passed over me when I did not care which of you I traded with: if he was a Muslim, Islam would bring him back to me, and if he was a Christian, his official would bring him back to me. But as for today, I would not trade except with so-and-so and so-and-so.