Sahih Muslim
2590.01

Abu Huraira reported Allah's Apostle (ﷺ) as saying:The servant (whose fault) Allah conceals in this world, Allah would also conceal (his faults) on the Day of Resurrection

2590.02

Abu Huraira reported Allah's Apostle (ﷺ) as saying:The servant (who conceals) the faults of others in this world, Allah would conceal his faults on the Day of Resurrection