'Abdullah b. Mas'ud reported Allah's Messenger (ﷺ) as saying: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).
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، وَهَنَّادُ بْنُ السَّرِيِّ، قَالاَ حَدَّثَنَا أَبُو الأَحْوَصِ، عَنْ مَنْصُورٍ، عَنْ أَبِي وَائِلٍ، عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ، قَالَ قَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم " 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 صلى الله عليه وسلم .
Muslim
The Book of Virtue, Enjoining Good Manners, and Joining of the Ties of Kinship • Hadith 135