Haram Speech & character
Yes. The Quran commands us to avoid false speech (22:30). The Prophet ﷺ said that truthfulness leads to righteousness and righteousness leads to Paradise, and that lying leads to wickedness.
ذَٰلِكَ وَمَن يُعَظِّمْ حُرُمَٰتِ ٱللَّهِ فَهُوَ خَيْرٌۭ لَّهُۥ عِندَ رَبِّهِۦ ۗ وَأُحِلَّتْ لَكُمُ ٱلْأَنْعَٰمُ إِلَّا مَا يُتْلَىٰ عَلَيْكُمْ ۖ فَٱجْتَنِبُوا۟ ٱلرِّجْسَ مِنَ ٱلْأَوْثَٰنِ وَٱجْتَنِبُوا۟ قَوْلَ ٱلزُّورِ ﴿٣٠﴾
事情就是这样的，谁尊重真主的戒律，在主的那里对于谁是更好的。 一切牲畜对你们都是合法的，对你们已宣布禁戒的除外。故你们应当避开污秽即偶像，应当永离妄语；
إِنَّمَا يَفْتَرِى ٱلْكَذِبَ ٱلَّذِينَ لَا يُؤْمِنُونَ بِـَٔايَٰتِ ٱللَّهِ ۖ وَأُو۟لَٰٓئِكَ هُمُ ٱلْكَٰذِبُونَ ﴿١٠٥﴾
不信真主的迹象者，才是捏造了谎言的，这等人确是说谎的。
Narrated `Abdullah:The Prophet (ﷺ) said, "Truthfulness leads to righteousness, and righteousness leads to Paradise. And a man keeps on telling the truth until he becomes a truthful person. Falsehood leads to Al-Fajur (i.e. wickedness, evil-doing), and Al-Fajur (wickedness) leads to the (Hell) Fire, and a man may keep on telling lies till he is written before Allah, a liar
حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا جَرِيرٌ، عَنْ مَنْصُورٍ، عَنْ أَبِي وَائِلٍ، عَنْ عَبْدِ اللَّهِ ـ رضى الله عنه ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " إِنَّ الصِّدْقَ يَهْدِي إِلَى الْبِرِّ، وَإِنَّ الْبِرَّ يَهْدِي إِلَى الْجَنَّةِ، وَإِنَّ الرَّجُلَ لَيَصْدُقُ حَتَّى يَكُونَ صِدِّيقًا، وَإِنَّ الْكَذِبَ يَهْدِي إِلَى الْفُجُورِ، وَإِنَّ الْفُجُورَ يَهْدِي إِلَى النَّارِ، وَإِنَّ الرَّجُلَ لَيَكْذِبُ، حَتَّى يُكْتَبَ عِنْدَ اللَّهِ كَذَّابًا ".
This is general information, not a fatwa. For your own situation, ask a qualified scholar.
Yes. The Quran commands us to avoid false speech (22:30). The Prophet ﷺ said that truthfulness leads to righteousness and righteousness leads to Paradise, and that lying leads to wickedness.
