Heres a few hadith on it
Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said, “
Verily, a servant may say a word only to make people laugh and due to it he plummets farther than the distance between heaven and earth. Verily, a man stumbles due to his tongue more than he stumbles with his two feet.”
Source: Shu’b Al-Iman 4484
Grade:
Hasan (fair) according to Ibn Hajar
عَنْ أَبِي هُرَيْرَةَ سَمِعَ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ إِنَّ الْعَبْدَ لَيَقُولُ الْكَلِمَةَ لا يَقُولُهَا إِلا لِيُضْحِكَ بِهَا أَهْلَ الْمَجْلِسِ يَهْوِي بِهَا أَبَعْدَ مَا بَيْنَ السَّمَاءِ وَالأَرْضِ وَإِنَّ الرَّجُلَ لَيَزِلُّ عَلَى لِسَانِهِ أَشَدَّ مَا يَزِلُّ عَلَى قَدَمَيْهِ4484 شعب الإيمان للبيهقي الرابع والثلاثون من شعب الإيمان وهوالمحدث ابن حجر العسقلاني خلاصة حكم المحدث حسن
Heres a hadith that has other things but brothers and sister were talking about Jannah :D
Ubadah ibn As-Samit reported: The Messenger of Allah, peace and blessings be upon him, said, “
Guarantee for me six actions and I will guarantee for you Paradise: Be truthful when you speak, keep your promises when you make them, fulfill the trust when you are trusted, guard your chastity, lower your gaze, and restrain your hands (from fighting).”
Source: Musnad Ahmad 22251
Grade:
Hasan (fair) according to Ibn Kathir
عَنْ عُبَادَةَ بْنِ الصَّامِتِ قَالَ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ اضْمَنُوا لِي سِتًّا مِنْ أَنْفُسِكُمْ أَضْمَنْ لَكُمُ الْجَنَّةَ اصْدُقُوا إِذَا حَدَّثْتُمْ وَأَوْفُوا إِذَا وَعَدْتُمْ وَأَدُّوا إِذَا اؤْتُمِنْتُمْ وَاحْفَظُوا فُرُوجَكُمْ وَغُضُّوا أَبْصَارَكُمْ وَكُفُّوا أَيْدِيَكُمْ
22251 مسند أحمد بَاقِي مُسْنَدِ الْأَنْصَارِ اضمنوا لي ستا من أنفسكم أضمن لكم الجنة
المحدث ابن كثير خلاصة حكم المحدث إسناده حسن
Heres the link join the h with the rest of the letters when when searching the link h ttp://www.dailyhadithonline.com/tag/guarding-the-tongue/
JazakaAllahu khair
And may Allah (swt) guide us all
Aameen