حَدَّثَنَا عَمْرُو بْنُ مَرْزُوقٍ، قَالَ: أَخْبَرَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، عَنْ أَبِي الأَحْوَصِ، عَنْ عَبْدِ اللهِ قَالَ: أَلأَمُ أَخْلاَقِ الْمُؤْمِنِ الْفُحْشُ.
Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) said: "The most despicable and base trait in the character of a believer is obscene speech."
Explanation & Benefits
Shaykh Maulana Usman Muneeb
Benefits and Issues:
Foul language sabotages all the virtues of a person's character, to the extent that it is even a deadly poison for his faith. There is no worse trait for a believer than to be foul-mouthed and obscene in speech; that is, a believer should avoid obscenity.
Source: Fadlullah al-Ahad: Urdu Commentary on al-Adab al-Mufrad, Page: 314