Sura 33 Al-Ahzab (Those who took up arms), ayat 32

1. يَا نِسَاءَ النَّبِيِّ لَسْتُنَّ كَأَحَدٍ مِنَ النِّسَاءِ ۚ إِنِ اتَّقَيْتُنَّ فَلَا تَخْضَعْنَ بِالْقَوْلِ فَيَطْمَعَ الَّذِي فِي قَلْبِهِ مَرَضٌ وَقُلْنَ قَوْلًا مَعْرُوفًا

   O wives of the Prophet, you are not like anyone among women. If you fear Allah, then do not be soft in speech (to men), lest he in whose heart is disease should covet, but speak with appropriate speech.

   33:32

traducere: Saheeh International