Telling of truth is a virtue and virtue leads to Paradise and the servant who endeavours to tell the truth is recorded as truthful, and lie is obscenity and obscenity leads to Hell-Fire, and the servant who endeavours to tell a lie is recorded as a liar. Ibn Abu Shaiba reported this from Allah's Apostle ﷺ.

قَالَ رَسُولُ اللَّهِ ﷺ إِنَّ الصِّدْقَ بِرٌّ وَإِنَّ الْبِرَّ يَهْدِي إِلَى الْجَنَّةِ وَإِنَّ الْعَبْدَ لَيَتَحَرَّى الصِّدْقَ حَتَّى يُكْتَبَ عِنْدَ اللَّهِ صِدِّيقًا وَإِنَّ الْكَذِبَ فُجُورٌ وَإِنَّ الْفُجُورَ يَهْدِي إِلَى النَّارِ وَإِنَّ الْعَبْدَ لَيَتَحَرَّى الْكَذِبَ حَتَّى يُكْتَبَ كَذَّابًا قَالَ ابْنُ أَبِي شَيْبَةَ فِي رِوَايَتِهِ عَنِ النَّبِيِّ ﷺ