Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
bukhari:6951Yaḥyá b. Bukayr > al-Layth > ʿUqayl > Ibn Shihāb > Sālim > ʿAbdullāh b. ʿUmar

Messenger of Allah ﷺ said, "A Muslim is a brother of another Muslim. So he should neither oppress him nor hand him over to an oppressor. And whoever fulfilled the needs of his brother, Allah will fulfill his needs."  

البخاري:٦٩٥١حَدَّثَنَا يَحْيَى بْنُ بُكَيْرِ حَدَّثَنَا اللَّيْثُ عَنْ عُقَيْلٍ عَنِ ابْنِ شِهَابٍ أَنَّ سَالِمًا أَخْبَرَهُ أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ ؓ

أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ الْمُسْلِمُ أَخُو الْمُسْلِمِ لاَ يَظْلِمُهُ وَلاَ يُسْلِمُهُ وَمَنْ كَانَ فِي حَاجَةِ أَخِيهِ كَانَ اللَّهُ فِي حَاجَتِهِ  


See similar narrations below:

Collected by Bukhārī, Tirmidhī, Nasāʾī's Kubrá
bukhari:2442Yaḥyá b. Bukayr > al-Layth > ʿUqayl > Ibn Shihāb > Sālim > ʿAbdullāh b. ʿUmar

Messenger of Allah ﷺ said, "A Muslim is a brother of another Muslim, so he should not oppress him, nor should he hand him over to an oppressor. Whoever fulfilled the needs of his brother, Allah will fulfill his needs; whoever brought his (Muslim) brother out of a discomfort, Allah will bring him out of the discomforts of the Day of Resurrection, and whoever screened a Muslim, Allah will screen him on the Day of Resurrection . "  

البخاري:٢٤٤٢حَدَّثَنَا يَحْيَى بْنُ بُكَيْرٍ حَدَّثَنَا اللَّيْثُ عَنْ عُقَيْلٍ عَنِ ابْنِ شِهَابٍ أَنَّ سَالِمًا أَخْبَرَهُ أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ ؓ

أَخْبَرَهُ أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ الْمُسْلِمُ أَخُو الْمُسْلِمِ لاَ يَظْلِمُهُ وَلاَ يُسْلِمُهُ وَمَنْ كَانَ فِي حَاجَةِ أَخِيهِ كَانَ اللَّهُ فِي حَاجَتِهِ وَمَنْ فَرَّجَ عَنْ مُسْلِمٍ كُرْبَةً فَرَّجَ اللَّهُ عَنْهُ كُرْبَةً مِنْ كُرُبَاتِ يَوْمِ الْقِيَامَةِ وَمَنْ سَتَرَ مُسْلِمًا سَتَرَهُ اللَّهُ يَوْمَ الْقِيَامَةِ  

tirmidhi:1426Qutaybah > al-Layth > ʿUqayl > al-Zuhrī > Sālim from his father

That the Messenger of Allah ﷺ said: "The Muslim is the brother of the Muslim, he doesn't oppress him and doesn't put him into ruin, and whoever is concerned for the needs of his brother, Allah is concerned for his needs, and whoever relieves a Muslim of a burden, Allah will relieve him of a burden from the burdens of the Day of Judgement and whoever covers (the faults of) a Muslim, Allah will cover (his faults) on the Day of Judgement."  

الترمذي:١٤٢٦حَدَّثَنَا قُتَيْبَةُ حَدَّثَنَا اللَّيْثُ عَنْ عُقَيْلٍ عَنِ الزُّهْرِيِّ عَنْ سَالِمٍ عَنْ أَبِيهِ

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ الْمُسْلِمُ أَخُو الْمُسْلِمِ لاَ يَظْلِمُهُ وَلاَ يُسْلِمُهُ وَمَنْ كَانَ فِي حَاجَةِ أَخِيهِ كَانَ اللَّهُ فِي حَاجَتِهِ وَمَنْ فَرَّجَ عَنْ مُسْلِمٍ كُرْبَةً فَرَّجَ اللَّهُ عَنْهُ كُرْبَةً مِنْ كُرَبِ يَوْمِ الْقِيَامَةِ وَمَنْ سَتَرَ مُسْلِمًا سَتَرَهُ اللَّهُ يَوْمَ الْقِيَامَةِ  

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ غَرِيبٌ مِنْ حَدِيثِ ابْنِ عُمَرَ
nasai-kubra:7251Qutaybah b. Saʿīd > al-Layth > ʿAqīl > Ibn Shihāb al-Zuhrī > Sālim from his father

A Muslim is a Muslim’s brother: he does not wrong him or abandon him. If anyone cares for his brother’s need, Allah will care for his need ; if anyone removes a Muslim’s anxiety, Allah will remove from him, on account of it, one of the anxieties of the Day of resurrection ; and if anyone conceals a Muslim’s fault, Allah will conceal his fault on the Day of resurrection. (Using translation from Abū Dāʾūd 4893)  

الكبرى للنسائي:٧٢٥١أَخْبَرَنَا قُتَيْبَةُ بْنُ سَعِيدٍ قَالَ حَدَّثَنَا اللَّيْثُ عَنْ عَقِيلٍ عَنِ ابْنِ شِهَابٍ الزُّهْرِيِّ عَنْ سَالِمٍ عَنْ أَبِيهِ

أَنَّ رَسُولَ اللهِ ﷺ قَالَ «الْمُسْلِمُ أَخُو الْمُسْلِمِ لَا يَظْلِمُهُ وَلَا يُسْلِمُهُ مَنْ كَانَ فِي حَاجَةِ أَخِيهِ كَانَ اللهُ فِي حَاجَتِهِ وَمَنْ فَرَّجَ عَنْ مُسْلِمٍ كُرْبَةً فَرَّجَ اللهُ عَنْهُ كُرْبَةً مِنْ كُرَبِ يَوْمِ الْقِيَامَةِ وَمَنْ سَتَرَ مُسْلِمًا سَتَرَهُ اللهُ يَوْمَ الْقِيَامَةِ»