The Prophet ﷺ said, "No servant shields another servant in this world without Allah shielding him on the Day of Resurrection."
وبهذا الإسناد أن النبي ﷺ قال لا يستر عبد عبدا في الدنيا إلا ستره الله يوم القيامة
Its isnad is sahih, it was previously mentioned at 7929, and Muslim narrated it in 4/2002, no. 2590, in the Book of Righteousness, as glad tidings for the one whom Allah conceals in this world. See al-Mustadrak 4/384.