A woman asked the Prophet ﷺ saying, "0 Messenger of Allah ﷺ! My daughter got measles and her hair fell out. Now that I got her married, may I let her use false hair?" He said (to her), "Allah has cursed the lady who lengthens hair artificially and the one who gets her hair lengthened artificially."  

سَأَلَتِ امْرَأَةٌ النَّبِيَّ ﷺ فَقَالَتْ يَا رَسُولَ اللَّهِ إِنَّ ابْنَتِي أَصَابَتْهَا الْحَصْبَةُ فَامَّرَقَ شَعَرُهَا وَإِنِّي زَوَّجْتُهَا أَفَأَصِلُ فِيهِ فَقَالَ لَعَنَ اللَّهُ الْوَاصِلَةَ وَالْمَوْصُولَةَ  

An Ansari woman gave her daughter in marriage and the hair of the latter started falling out. The Ansari women came to the Prophet ﷺ and mentioned that to him and said, "Her (my daughter's) husband suggested that I should let her wear false hair." The Prophet ﷺ said, "No, (don't do that) for Allah sends His curses upon such ladies who lengthen their hair artificially."  

أَنَّ امْرَأَةً مِنَ الأَنْصَارِ زَوَّجَتِ ابْنَتَهَا فَتَمَعَّطَ شَعَرُ رَأْسِهَا فَجَاءَتْ إِلَى النَّبِيِّ ﷺ فَذَكَرَتْ ذَلِكَ لَهُ فَقَالَتْ إِنَّ زَوْجَهَا أَمَرَنِي أَنْ أَصِلَ فِي شَعَرِهَا فَقَالَ لاَ إِنَّهُ قَدْ لُعِنَ الْمُوصِلاَتُ  

ʿAbdullah (bin Masud) said. "Allah curses those ladies who practice tattooing and those who get themselves tattooed, and those ladies who remove the hair from their faces and those who make artificial spaces between their teeth in order to look more beautiful whereby they change Allah's creation." His saying reached a lady from Bani Asd called Um Yaqub who came (to ʿAbdullah) and said, "I have come to know that you have cursed such-and-such (ladies)?" He replied, "Why should I not curse these whom Messenger of Allah ﷺ has cursed and who are (cursed) in Allah's Book!" Um Yaqub said, "I have read the whole Qur'an, but I did not find in it what you say." He said, "Verily, if you have read it (i.e. the Qur'an), you have found it. Didn't you read: 'And whatsoever the Apostle gives you take it and whatsoever he forbids you, you abstain (from it). (59.7) She replied, "Yes, I did," He said, "Verily, Messenger of Allah ﷺ forbade such things." "She said, "But I see your wife doing these things?" He said, "Go and watch her." She went and watched her but could not see anything in support of her statement. On that he said, "If my wife was as you thought, I would not keep her in my company."  

لَعَنَ اللَّهُ الْوَاشِمَاتِ وَالْمُوتَشِمَاتِ وَالْمُتَنَمِّصَاتِ وَالْمُتَفَلِّجَاتِ لِلْحُسْنِ الْمُغَيِّرَاتِ خَلْقَ اللَّهِ فَبَلَغَ ذَلِكَ امْرَأَةً مِنْ بَنِي أَسَدٍ يُقَالُ لَهَا أُمُّ يَعْقُوبَ فَجَاءَتْ فَقَالَتْ إِنَّهُ بَلَغَنِي أَنَّكَ لَعَنْتَ كَيْتَ وَكَيْتَ فَقَالَ وَمَا لِي لاَ أَلْعَنُ مَنْ لَعَنَ رَسُولُ اللَّهِ ﷺ وَمَنْ هُوَ فِي كِتَابِ اللَّهِ فَقَالَتْ لَقَدْ قَرَأْتُ مَا بَيْنَ اللَّوْحَيْنِ فَمَا وَجَدْتُ فِيهِ مَا تَقُولُ قَالَ لَئِنْ كُنْتِ قَرَأْتِيهِ لَقَدْ وَجَدْتِيهِ أَمَا قَرَأْتِ {وَمَا آتَاكُمُ الرَّسُولُ فَخُذُوهُ وَمَا نَهَاكُمْ عَنْهُ فَانْتَهُوا} قَالَتْ بَلَى قَالَ فَإِنَّهُ قَدْ نَهَى عَنْهُ قَالَتْ فَإِنِّي أَرَى أَهْلَكَ يَفْعَلُونَهُ قَالَ فَاذْهَبِي فَانْظُرِي فَذَهَبَتْ فَنَظَرَتْ فَلَمْ تَرَ مِنْ حَاجَتِهَا شَيْئًا فَقَالَ لَوْ كَانَتْ كَذَلِكَ مَا جَامَعْتُها  

That he heard Muawiya bin Abi Sufyan (talking) on the pulpit in the year when he performed the Hajj. He took a tuft of hair that was in the hand of an orderly and said, "O people of Medina! Where are your learned men? I heard the Prophet ﷺ forbidding such a thing as this (i.e. false hair) and he used to say, 'The Israelis were destroyed when their ladies practiced this habit (of using false hair to lengthen their locks).  

أَنَّهُ سَمِعَ مُعَاوِيَةَ بْنَ أَبِي سُفْيَانَ عَامَ حَجَّ عَلَى الْمِنْبَرِ فَتَنَاوَلَ قُصَّةً مِنْ شَعَرٍ وَكَانَتْ فِي يَدَىْ حَرَسِيٍّ فَقَالَ يَا أَهْلَ الْمَدِينَةِ أَيْنَ عُلَمَاؤُكُمْ سَمِعْتُ النَّبِيَّ ﷺ يَنْهَى عَنْ مِثْلِ هَذِهِ وَيَقُولُ إِنَّمَا هَلَكَتْ بَنُو إِسْرَائِيلَ حِينَ اتَّخَذَهَا نِسَاؤُهُمْ