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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
abudawud:4799 – [Chain 1] Abū al-Walīd al-Ṭayālisī And Ḥafṣ b. ʿUmar [Chain 2] Ibn Kathīr > Shuʿbah > al-Qāsim b. Abū Bazzah > ʿAṭāʾ al-Kaykhārānī > Um al-Dardāʾ > Abū al-Dardāʾ

The Prophet ﷺ said: There is nothing heavier than good character put in the scale of a believer on the Day of Resurrection. Abu al-Walid said: I heard 'Ata al-Kaikharani say: Abu Dawud said: His name is 'Ata b. Ya'qub. He is the maternal uncle of Ibrahim b. Nafi'. He is called Kaikharani or Kukharani.  

أبو داود:٤٧٩٩ – حَدَّثَنَا أَبُو الْوَلِيدِ الطَّيَالِسِيُّ وَحَفْصُ بْنُ عُمَرَ قَالاَ حَدَّثَنَا ح وَحَدَّثَنَا ابْنُ كَثِيرٍ أَخْبَرَنَا شُعْبَةُ عَنِ الْقَاسِمِ بْنِ أَبِي بَزَّةَ عَنْ عَطَاءٍ الْكَيْخَارَانِيِّ عَنْ أُمِّ الدَّرْدَاءِ عَنْ أَبِي الدَّرْدَاءِ

عَنِ النَّبِيِّ ﷺ قَالَ مَا مِنْ شَىْءٍ أَثْقَلُ فِي الْمِيزَانِ مِنْ حُسْنِ الْخُلُقِ قَالَ أَبُو الْوَلِيدِ قَالَ سَمِعْتُ عَطَاءً الْكَيْخَارَانِيَّ  

قَالَ أَبُو دَاوُدَ وَهُوَ عَطَاءُ بْنُ يَعْقُوبَ وَهُوَ خَالُ إِبْرَاهِيمَ بْنِ نَافِعٍ يُقَالُ كَيْخَارَانِيٌّ وَكَوْخَارَانِيٌّ

See similar narrations below:

Collected by Aḥmad
ahmad:27517 – Muḥammad b. Jaʿfar > Shuʿbah > al-Qāsimab. Abū Bazzah > ʿAṭāʾ al-Kaykhārānī > Um al-Dardāʾ > Abū al-Dardāʾ

[Machine] The Messenger of Allah ﷺ said, "There is nothing heavier on the scale than good character."  

أحمد:٢٧٥١٧ – حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ حَدَّثَنَا شُعْبَةُ قَالَ سَمِعْتُ الْقَاسِمَبْنَ أَبِي بَزَّةَ عَنْ عَطَاءٍ الْكَيْخَارَانِيِّ عَنْ أُمِّ الدَّرْدَاءِ عَنْ أَبِي الدَّرْدَاءِ

أَنَّ رَسُولَ اللهِ ﷺ قَالَ مَا مِنْ شَيْءٍ أَثْقَلُ فِي الْمِيزَانِ مِنْ خُلُقٍ حَسَنٍ