The Prophet ﷺ said, "Whoever relieves a Muslim of one of the hardships of this world, Allah will relieve him of one of the hardships of the Day of Resurrection. Whoever eases the burden of someone in difficulty, Allah will ease his burden in this world and the next. Whoever conceals the faults of a Muslim in this world, Allah will conceal his faults in this world and the next. Allah remains in the aid of His servant as long as the servant remains in the aid of his brother."
حدثنا عبيد بن أسباط بن محمد القرشي حدثني أبي عن الأعمش قال حدثت عن أبي صالح
عن النبي ﷺ قال من نفس عن مسلم كربة من كرب الدنيا نفس الله عنه كربة من كرب يوم القيامة ومن يسر على معسر في الدنيا يسر الله عليه في الدنيا والآخرة ومن ستر على مسلم في الدنيا ستر الله عليه في الدنيا والآخرة والله في عون العبد ما كان العبد في عون أخيه
Graded sahih. A portion of it has already appeared: 1425. Amash stated explicitly that he heard it directly, as recorded by Muslim, hadith: 38/2699b. On this topic there are also narrations from Ibn Umar [already mentioned: 1426] and Uqba bin Amir [Abu Dawud, hadith: 4892].