It was narrated that Ans bin Malik said: "The Messenger of Allah (ﷺ) said: 'Whoever gives up telling lies in support of a false claim, a palace will be built for him in the outskirts of Paradise. Whoever gives up argument when he is in the right, a palace will be built from him in the middle (of Paradise). And whoever had good behavior, a palace will be built for him in the highest reaches (of Paradise).'"
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا عَبْدُ الرَّحْمَنِ بْنُ إِبْرَاهِيمَ الدِّمَشْقِيُّ، وَهَارُونُ بْنُ إِسْحَاقَ، قَالاَ حَدَّثَنَا ابْنُ أَبِي فُدَيْكٍ، عَنْ سَلَمَةَ بْنِ وَرْدَانَ، عَنْ أَنَسِ بْنِ مَالِكٍ، قَالَ قَالَ رَسُولُ اللَّهِ ـ صلى الله عليه وسلم ـ " مَنْ تَرَكَ الْكَذِبَ وَهُوَ بَاطِلٌ بُنِيَ لَهُ قَصْرٌ فِي رَبَضِ الْجَنَّةِ وَمَنْ تَرَكَ الْمِرَاءَ وَهُوَ مُحِقٌّ بُنِيَ لَهُ فِي وَسَطِهَا وَمَنْ حَسَّنَ خُلُقَهُ بُنِيَ لَهُ فِي أَعْلاَهَا " .
sunnah.com