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ahmad:11068 – Abū Muʿāwiyah > al-Aʿmash > Abū Ṣāliḥ > Abū Saʿīd

that about Allah's saying: Thus we have made you a Wasata nation (2:143) - the Prophet ﷺ said: "The meaning of Wasata is just." (Using translation from Tirmidhī 2961)  

أحمد:١١٠٦٨ – حَدَّثَنَا أَبُو مُعَاوِيَةَ حَدَّثَنَا الْأَعْمَشُ عَنْ أَبِي صَالِحٍ عَنْ أَبِي سَعِيدٍ

عَنِ النَّبِيِّ ﷺ فِي قَوْلِهِ ﷻ وَكَذَلِكَ جَعَلْنَاكُمْ أُمَّةً وَسَطًا قَالَ عَدْلًا  

See similar narrations below:

Collected by Tirmidhī, Ibn Ḥibbān, Nasāʾī's Kubrá
tirmidhi:2961 – Aḥmad b. Manīʿ > Abū Muʿāwiyah > al-Aʿmash > Abū Ṣāliḥ > Abū Saʿīd

that about Allah's saying: Thus we have made you a Wasata nation (2:143) - the Prophet ﷺ said: "The meaning of Wasata is just."  

[Abu 'Eisa said: This Hadith is [Hasan] Sahih. (Another chain) From Abu Sa'eed who narrated that: "The Messenger of Allah a said: 'Nuh will be called and it will be said: "Did you deliver (the Message)? "He will say: "Yes" and his people will be called and it will be said: "Did he call you?" They will say: "No warner came to us. No one came to us.' It will be said: "Who will testify for you?" So it is said: "Muhammad and his Ummah (community)." He ﷺ said: You will be brought to testify that he delivered (the Message) and that is His saying: Thus, we have made you a Wasata nation that you will be witnesses over mankind and the Messenger (Muhammad) will be a witness over you.' And Al-Wasat is "Just." (Sahih) Abu 'Eisa said: This Hadith is Hasan Sahih.
الترمذي:٢٩٦١ – حَدَّثَنَا أَحْمَدُ بْنُ مَنِيعٍ حَدَّثَنَا أَبُو مُعَاوِيَةَ حَدَّثَنَا الأَعْمَشُ عَنْ أَبِي صَالِحٍ عَنْ أَبِي سَعِيدٍ

عَنِ النَّبِيِّ ﷺ فِي قَوْلِهِ (كََذَلِكَ جَعَلْنَاكُمْ أُمَّةً وَسَطًا ) قَالَ عَدْلاً  

قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ حَدَّثَنَا عَبْدُ بْنُ حُمَيْدٍ أَخْبَرَنَا جَعْفَرُ بْنُ عَوْنٍ أَخْبَرَنَا الأَعْمَشُ عَنْ أَبِي صَالِحٍ عَنْ أَبِي سَعِيدٍ قَالَ قَالَ رَسُولُ اللَّهِ ﷺ يُدْعَى نُوحٌ فَيُقَالُ هَلْ بَلَّغْتَ فَيَقُولُ نَعَمْ فَيُدْعَى قَوْمُهُ فَيُقَالُ هَلْ بَلَّغَكُمْ فَيَقُولُونَ مَا أَتَانَا مِنْ نَذِيرٍ وَمَا أَتَانَا مِنْ أَحَدٍ فَيَقُولُ مَنْ شُهُودُكَ فَيَقُولُ مُحَمَّدٌ وَأُمَّتُهُ قَالَ فَيُؤْتَى بِكُمْ تَشْهَدُونَ أَنَّهُ قَدْ بَلَّغَ فَذَلِكَ قَوْلُ اللَّهِ ( وَكَذَلِكَ جَعَلْنَاكُمْ أُمَّةً وَسَطًا لِتَكُونُوا شُهَدَاءَ عَلَى النَّاسِ وَيَكُونَ الرَّسُولُ عَلَيْكُمْ شَهِيدًا ) وَالْوَسَطُ الْعَدْلُ قَالَ أَبُو عِيسَى هَذَا حَدِيثٌ حَسَنٌ صَحِيحٌ حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ حَدَّثَنَا جَعْفَرُ بْنُ عَوْنٍ عَنِ الأَعْمَشِ نَحْوَهُ

ذِكْرُ الْإِخْبَارِ بِأَنَّ هَذِهِ الْأُمَّةَ هِيَ مِنَ أَعْدَلِ الْأُمَمِ أَسْبَابًا

ibnhibban:7216 – Aḥmad b. ʿAlī b. al-Muthanná > Abū Khaythamah > Abū Muʿāwiyah > al-Aʿmash > Abū Ṣāliḥ > Abū Saʿīd

that about Allah's saying: Thus we have made you a Wasata nation (2:143) - the Prophet ﷺ said: "The meaning of Wasata is just." (Using translation from Tirmidhī 2961)  

ابن حبّان:٧٢١٦ – أَخْبَرَنَا أَحْمَدُ بْنُ عَلِيِّ بْنِ الْمُثَنَّى قَالَ حَدَّثَنَا أَبُو خَيْثَمَةَ قَالَ حَدَّثَنَا أَبُو مُعَاوِيَةَ حَدَّثَنَا الْأَعْمَشُ عَنْ أَبِي صَالِحٍ عَنْ أَبِي سَعِيدٍ

عَنِ النَّبِيِّ ﷺ فِي قَوْلِهِ {وَكَذَلِكَ جَعَلْنَاكُمْ أُمَّةً وَسَطًا} قَالَ «عَدْلًا»  

قَوْلُهُ تَعَالَى: {وَكَذَلِكَ جَعَلْنَاكُمْ أُمَّةً وَسَطًا} [البقرة: 143]

nasai-kubra:10939 – Muḥammad b. al-Muthanná > Hishām b. ʿAbd al-Malik > Abū Muʿāwiyah > al-Aʿmash > Abū Ṣāliḥ > Abū Saʿīd

[Machine] "From the Prophet ﷺ, 'We have made you an Ummah justly balanced' [Al-Baqarah 143]. He said, 'Balanced.'"  

الكبرى للنسائي:١٠٩٣٩ – أَخْبَرَنَا مُحَمَّدُ بْنُ الْمُثَنَّى عَنْ هِشَامِ بْنِ عَبْدِ الْمَلِكِ حَدَّثَنَا أَبُو مُعَاوِيَةَ أَخْبَرَنَا الْأَعْمَشُ عَنْ أَبِي صَالِحٍ عَنْ أَبِي سَعِيدٍ

عَنِ النَّبِيِّ ﷺ {جَعَلْنَاكُمْ أُمَّةً وَسَطًا} [البقرة 143] قَالَ «عَدْلًا»