Hadith #5120 (Sunan al-Nasa'i)
Book: The Book of Adornment
Narrator(s): Abu Hurairah, Imran bin Zbyan عمران بن ظبيان, Muhammad bin Mansur bin Da'ud محمد بن منصور بن داود الطوسي, Sufyan bin 'Uyaynah سفيان بن عيينة

“We heard that the Messenger of Allah  forbade filing (the teeth) and tattoos.”

Source: https://parallelquran.com/hadith/sunan-al-nasai-5120/