حَدَّثَنَا سَعِيدُ بْنُ سُلَيْمَانَ، قَالَ: حَدَّثَنَا هُشَيْمٌ، عَنْ مَنْصُورٍ، عَنِ الْحَسَنِ، عَنْ أَبِي بَكْرَةَ
عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: الْحَيَاءُ مِنَ الإِيمَانِ، وَالإِيمَانُ فِي الْجَنَّةِ، وَالْبَذَاءُ مِنَ الْجَفَاءِ، وَالْجَفَاءُ فِي النَّارِ
The Prophet (sallallahu alayhi wa sallam), may Allah bless him and grant him peace, said, “Modesty is part of belief. Belief is in the Garden. Foul language is part of coarseness and coarseness is in the Fire.”
Al-Adab Al-Mufrad 1317, Book 56, Meddling and Harshness, Hadith 10. 1 min read