كتاب الزينة من السنن
Read the English translation first, with the original Arabic directly underneath.
It was narrated that Sa'eed Al-Maqburi said:
"I saw Mu'awiyah bin Abi Sufyan on the Minbar, holding a ball of hair such as women use. He said: "What is wrong with Muslim women who put such things (on their heads)? I heard the Messenger of Allah [ﷺ] say: "Any woman who adds hair to her head that is not hers, it is something false, that she is adding to her head."
أَيُّمَا امْرَأَةٍ زَادَتْ فِي رَأْسِهَا شَعْرًا لَيْسَ مِنْهُ فَإِنَّهُ زُورٌ تَزِيدُ فِيهِ