The Prophet ﷺ said, "Wrongdoing will be layers of darkness on the Day of Resurrection."
عن النبي ﷺ قال: الظلم ظلمات يوم القيامة.
Bukhari narrated it in the Book of Grievances (2447), and Muslim in the Book of Righteousness and Maintaining Ties (2579), both by way of Abdul-Aziz Majishun, who said, Abdullah bin Dinar informed us, from Abdullah bin Umar, and he related it. The wording given is Bukhari's, and Muslim's wording is similar.