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Surah 24. An-Nur
Ayah 23 - 25
23 إِنَّ ٱلَّذِينَ يَرْمُونَ ٱلْمُحْصَنَـٰتِ ٱلْغَـٰفِلَـٰتِ ٱلْمُؤْمِنَـٰتِ لُعِنُوا۟ فِى ٱلدُّنْيَا وَٱلْـَٔاخِرَةِ وَلَهُمْ عَذَابٌ عَظِيمٌ
24 يَوْمَ تَشْهَدُ عَلَيْهِمْ أَلْسِنَتُهُمْ وَأَيْدِيهِمْ وَأَرْجُلُهُم بِمَا كَانُوا۟ يَعْمَلُونَ
25 يَوْمَئِذٍ يُوَفِّيهِمُ ٱللَّهُ دِينَهُمُ ٱلْحَقَّ وَيَعْلَمُونَ أَنَّ ٱللَّهَ هُوَ ٱلْحَقُّ ٱلْمُبِينُ
[23-25] Those who charge with slander those Believing women, who are chaste but simple souls,21 are accursed in this world and in the Hereafter: there is a great punishment for them. They should not forget the Day when their own tongues and their own hands and test will bear testimony in regard to their misdeeds.21a On that Day Allah will give them the full recompense they deserve, and they will realize that Allah is the very Truth, Who makes the Truth manifest.
21The word ghafilat as used in the Text means the women who are simple, unpretentious souls, who do not know any artifice, who have pious hearts and have no idea of immorality. They cannot even imagine that their names could ever be associated with any slander. The Holy Prophet has said: "To slander chaste women is one of the seven 'deadly' sins." According to another Tradition cited by Tabarani from Hadrat Huzaifah, the Holy Prophet said: "To slander a pious woman suffices to ruin the good deeds of a hundred years. "
21aFor explanation, see E.N. 55 of Surah Ya Sin and E.N. 25 of Ha Mim Sajdah.