Jami` at-Tirmidhi 1759
جامع الترمذي#1759SahihNarrated Ibn 'Umar: That the Prophet (ﷺ) said: "Allah has cursed the woman who artificially lengthens and the woman who seeks to have her hair artificially lengthened, and the woman who tattoos and the woman who seeks tattooed." Nafi' (one of the narrators) said: "Tattooing was on the gums." [Abu 'Eisa said:] This Hadith is Hasan Sahih. He said: There are narrations on this topic from Ibn Mas'ud, 'Aishah, Asma' bint Abi Bakr, Ma'qil bin Yasar, Ibn 'Abbas, and Mu'awiyah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih - Agreed Upon
In-book reference: 24:42