Sayyiduna Hudhayfah (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings be upon him) narrated two hadiths to me. One of them I have seen, and I am waiting for the other. He (peace and blessings be upon him) narrated: "Trustworthiness (amanah) descended into the hearts of men; the Qur'an was revealed, and they learned the Qur'an and learned the Sunnah." Then he spoke about its being taken away. He (peace and blessings be upon him) said: "A man will sleep, and trustworthiness will be taken from his heart, and only a trace of it will remain. Then the man will sleep, and trustworthiness will be taken from his heart, and only a mark like a blister on the skin will remain, as if an ember had fallen on your foot and made the skin swell, while there is nothing inside it. In the morning people will buy and sell with one another, but not one of them will fulfil the trust, until it will be said: In such-and-such tribe there lives a trustworthy man; and until it will be said of a man: How resolute and intelligent he is! while there is not even a speck of good in his heart." Sayyiduna Hudhayfah (may Allah be pleased with him) said: There came a time upon me when I did not care with whom I traded: if he was a believer, his religion would return (my due) to me, and if he was a Jew or a Christian, his overseer would return it to me. But today I trade only with so-and-so and so-and-so.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب آداب القاضي / 20385