Surah Al-Ahzab, Verse 32

يَٰنِسَآءَ ٱلنَّبِيِّ لَسۡتُنَّ كَأَحَدٖ مِّنَ ٱلنِّسَآءِ إِنِ ٱتَّقَيۡتُنَّۚ فَلَا تَخۡضَعۡنَ بِٱلۡقَوۡلِ فَيَطۡمَعَ ٱلَّذِي فِي قَلۡبِهِۦ مَرَضٞ وَقُلۡنَ قَوۡلٗا مَّعۡرُوفٗا٣٢

yānisāa l-nabiyi lastunna ka-aḥadin mina l-nisāi ini ittaqaytunna falā takhḍaʿna bil-qawli fayaṭmaʿa alladhī fī qalbihi maraḍun waqul'na qawlan maʿrūfan

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