Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
abudawud:4766al-Ḥasan b. ʿAlī > ʿAbd al-Razzāq > Maʿmar > Qatādah > Anas

Tasmid means uprooting the hair.  

أبو داود:٤٧٦٦حَدَّثَنَا الْحَسَنُ بْنُ عَلِيٍّ حَدَّثَنَا عَبْدُ الرَّزَّاقِ أَخْبَرَنَا مَعْمَرٌ عَنْ قَتَادَةَ عَنْ أَنَسٍ

أَنَّ رَسُولَ اللَّهِ ﷺ نَحْوَهُ قَالَ سِيمَاهُمُ التَّحْلِيقُ وَالتَّسْبِيدُ فَإِذَا رَأَيْتُمُوهُمْ فَأَنِيمُوهُمْ  

قَالَ أَبُو دَاوُدَ التَّسْبِيدُ اسْتِئْصَالُ الشَّعْرِ