Anas bin Malik narrated that the Messenger of Allah (ﷺ) said: "Whoever avoids lying while he is doing so falsely, a house will be built for him on the skirts of Paradise. Whoever avoids arguing while he is in the right, a house will be built for him in its midst. And whoever has good character, a house will be built for him in its heights."
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا عُقْبَةُ بْنُ مُكْرَمٍ الْعَمِّيُّ الْبَصْرِيُّ، حَدَّثَنَا ابْنُ أَبِي فُدَيْكٍ، قَالَ حَدَّثَنِي سَلَمَةُ بْنُ وَرْدَانَ اللَّيْثِيُّ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " مَنْ تَرَكَ الْكَذِبَ وَهُوَ بَاطِلٌ بُنِيَ لَهُ فِي رَبَضِ الْجَنَّةِ وَمَنْ تَرَكَ الْمِرَاءَ وَهُوَ مُحِقٌّ بُنِيَ لَهُ فِي وَسَطِهَا وَمَنْ حَسَّنَ خُلُقَهُ بُنِيَ لَهُ فِي أَعْلاَهَا " . وَهَذَا الْحَدِيثُ حَدِيثٌ حَسَنٌ لاَ نَعْرِفُهُ إِلاَّ مِنْ حَدِيثِ سَلَمَةَ بْنِ وَرْدَانَ عَنْ أَنَسِ بْنِ مَالِكٍ .
sunnah.com