Salim ibn 'Abdullah said, "I never heard 'Abdullah ever curse anything." Salim mentioned that 'Abdullah ibn 'Umar said, "It is not fitting for a believer to be a curser."  

مَا سَمِعْتُ عَبْدَ اللهِ لاَعِنًا أَحَدًا قَطُّ لَيْسَ إِنْسَانًا وَكَانَ سَالِمٌ يَقُولُ قَالَ عَبْدُ اللهِ بْنُ عُمَرَ قَالَ رَسُولُ اللهِ ﷺ لاَ يَنْبَغِي لِلْمُؤْمِنِ أَنْ يَكُونَ لَعَّانًا  

Jabir ibn 'Abdullah reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "Allah does not love the loud and coarse nor the one who shouts in the markets."  

قَالَ رَسُولُ اللهِ ﷺ إِنَّ اللَّهَ لاَ يُحِبُّ الْفَاحِشَ الْمُتَفَحِّشَ وَلاَ الصَّيَّاحَ فِي الاسْوَاقِ  

'A'isha reported that some Jews came to the Prophet, may Allah bless him and grant him peace, and said, "Poison ('sam' instead of 'salam') be upon you." 'A'isha said, "And upon you and may the curse of Allah and the anger of Allah be upon you!" The Prophet said, "Easy, 'A'isha, you must be gentle. Beware of harshness and coarseness." She asked, "Didn't you hear what they said?" He said, "Didn't you hear what I said? I repeated it to them and what I said about them will be accepted and what they said about me will not be accepted."  

أَنَّ يَهُودًا أَتَوُا النَّبِيَّ ﷺ فَقَالُوا السَّامُ عَلَيْكُمْ فَقَالَتْ عَائِشَةُ وَعَلَيْكُمْ وَلَعَنَكُمُ اللَّهُ وَغَضِبُ اللَّهُ عَلَيْكُمْ قَالَ مَهْلاً يَا عَائِشَةُ عَلَيْكِ بِالرِّفْقِ وَإِيَّاكِ وَالْعُنْفَ وَالْفُحْشَ قَالَتْ أَوَ لَمْ تَسْمَعْ مَا قَالُوا؟ قَالَ أَوَ لَمْ تَسْمَعِي مَا قُلْتُ؟ رَدَدْتُ عَلَيْهِمْ فَيُسْتَجَابُ لِي فِيهِمْ وَلاَ يُسْتَجَابُ لَهُمْ فِيَّ  

'Abdullah reported that the Prophet, may Allah bless him and grant him peace, said, "A believer is not a defamer nor a curser nor coarse nor obscene."  

عَنِ النَّبِيِّ ﷺ قَالَ لَيْسَ الْمُؤْمِنُ بِالطَّعَّانِ وَلاَ اللِّعَانِ وَلاَ الْفَاحِشِ وَلاَ الْبَذِي  

Abu Hurayra reported that the Prophet, may Allah bless him and grant him peace, said, "A person who is two-faced cannot be trusted."  

عَنِ النَّبِيِّ ﷺ قَالَ لاَ يَنْبَغِي لِذِي الْوَجْهَيْنِ أَنْ يَكُونَ أَمِينًا  

'Abdullah said, "The most blameworthy thing in a believer's character is coarseness."  

أَلأَمُ أَخْلاَقِ الْمُؤْمِنِ الْفُحْشُ  

'Ubayd al-Kindi al-Kufi reported that he heard 'Ali ibn Abi Talib said, "The cursers are cursed."  

لُعِنَ اللَّعَّانُونَ