Masruq reports that a woman once came to Sayyiduna Ibn Mas’ud (may Allah be pleased with him) and said,“I have heard that you forbid women from adding hair to their own hair?”He replied,“That is correct.”The woman asked,“Do you find this ruling in the Qur’an, or have you heard any statement from the Prophet (peace and blessings be upon him) regarding this?”He replied,“I find this ruling both in the Qur’an and in the statement of the Prophet (peace and blessings be upon him).”The woman said,“By Allah! I have thoroughly searched the Mushaf that is between the two covers, and I have not found this ruling anywhere in it.”Sayyiduna Ibn Mas’ud (may Allah be pleased with him) asked,“Did you find this verse in it: «﴿وَمَا آتَاكُمُ الرَّسُولُ فَخُذُوهُ وَمَا نَهَاكُمْ عَنْهُ فَانْتَهُوا﴾» [الحشر: 7] ‘Whatever the Messenger gives you, take it, and whatever he forbids you, abstain from it’?”She said,“Yes!”He said,“Then I heard the Prophet (peace and blessings be upon him) forbidding these things: the one who plucks hair, the one who files teeth, the one who adds hair to her own hair, and the one who tattoos, except in the case of illness.”The woman said,“What if the women of your household do these things?”Sayyiduna Ibn Mas’ud (may Allah be pleased with him) replied,“Go and see.”The woman went to his house, then returned and said,“I did not find anything objectionable there.”He said,“If it were so, I would not forget the advice of the righteous servant, Prophet Shu’ayb (peace be upon him): ‘I cannot forbid you from something and then do it myself (that I forbid you from something and then myself continue to do it).’”