Religious and worldly disadvantages of bad manners

Bad manners are a curse.

Bad manners are themselves a bad practice and also a means of many bad practices. (Mirat-ul-Manajih, vol. 6, pp. 436)

Untruth, dishonesty and breaking promises are all branches of bad manners. (Ibid)

Bad manners bring about discord among one another. (Ihya-ul-‘Uloom, vol. 2, pp. 569)

Bad manners create malice, jealousy and separation from one another. (Ibid)

The Beloved Rasool صَلَّى اللهُ تَعَالٰى عَلَيْهِ وَاٰلِهٖ وَسَلَّم sought refuge from bad manners. (Abu Dawood, vol. 2, pp. 130, Hadees 1546)

Allah عَزَّوَجَلَّ is displeased with bad manners and foul language.

Customers hesitate to go to shopkeepers having bad manners.

Bad manners are a bad omen. (Kanz-ul-‘Ummal, Juz: 3, vol. 2, pp. 178, Hadees 7343)

If bad manners were in the form of a human, he would be a (very) bad man. (Kanz-ul-‘Ummal, Juz: 3, vol. 2, pp. 178, Hadees 7351)

To Allah عَزَّوَجَلَّ the biggest evil is bad manners. (Jami’-ul-Ahadees, vol. 19, pp. 406, Hadees 14922)

Undoubtedly, immodesty and bad manners have nothing to do with Islam. (Musnad Ahmad, vol. 7, pp. 431, Hadees 20997)

A bad manner is a very big obstacle in the way of presenting call towards righteousness.

Bad manners sometimes become the cause of divorce between husband and wife.

Due to the curse of bad manners the peace of home gets destroyed.

Due to the curse of bad manners any devotee of Rasool or rather the whole family can get away from the Madani environment of Dawat-e-Islami.