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.
tabarani:754al-Miqdām b. Dāwud > Abū al-Aswad al-Naḍr b. ʿAbd al-Jabbār > Nūḥ b. ʿAbbād al-Qurashī al-Baṣrī > Thābit > Anas

[Machine] The Prophet Muhammad ﷺ said, "Indeed, a person will reach great levels in the Hereafter and honorable stations due to his good character, even though he may be weak in worship. And indeed, a person will descend to the lowest level in Hell due to his bad character."  

الطبراني:٧٥٤حَدَّثَنَا الْمِقْدَامُ بْنُ دَاوُدَ ثنا أَبُو الْأَسْوَدِ النَّضْرُ بْنُ عَبْدِ الْجَبَّارِ ثنا نُوحُ بْنُ عَبَّادٍ الْقُرَشِيُّ الْبَصْرِيُّ عَنْ ثَابِتٍ عَنْ أَنَسٍ ؓ

عَنْ رَسُولِ اللهِ ﷺ قَالَ «إِنَّ الْعَبْدَ لَيَبْلُغُ بِحُسْنِ خُلُقِهِ عَظِيمَ دَرَجَاتِ الْآخِرَةِ وَشَرَفَ الْمَنَازِلِ وَإِنَّهُ لَضَعِيفُ الْعِبَادَةِ وَإِنَّهُ لَيَبْلُغُ بِسُوءِ خُلُقِهِ أَسْفَلَ دَرَجَةٍ فِي جَهَنَّمَ»