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.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
bukhari:5888 – al-Makkī b. Ibrāhīm > Ḥanẓalah > Nāfiʿ > Aṣḥābunā > al-Makkī > Ibn ʿUmar

The Prophet ﷺ said, "To get the moustaches cut 'short is characteristic of the Fitra."  

البخاري:٥٨٨٨ – حَدَّثَنَا الْمَكِّيُّ بْنُ إِبْرَاهِيمَ عَنْ حَنْظَلَةَ عَنْ نَافِعٍ قَالَ أَصْحَابُنَا عَنِ الْمَكِّيِّ عَنِ ابْنِ عُمَرَ ؓ

عَنِ النَّبِيِّ ﷺ قَالَ مِنَ الْفِطْرَةِ قَصُّ الشَّارِبِ  

See similar narrations below:

Collected by Bukhārī, Ibn Ḥibbān, Suyūṭī
bukhari:5890 – Aḥmad b. Abū Rajāʾ > Isḥāq b. Sulaymān > Ḥanẓalah > Nāfiʿ > Ibn ʿUmar

Messenger of Allah ﷺ said, "To shave the pubic hair. to clip the nails and to cut the moustaches short, are characteristics of the Fitra."  

البخاري:٥٨٩٠ – حَدَّثَنَا أَحْمَدُ بْنُ أَبِي رَجَاءٍ حَدَّثَنَا إِسْحَاقُ بْنُ سُلَيْمَانَ قَالَ سَمِعْتُ حَنْظَلَةَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ ؓ

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ مِنَ الْفِطْرَةِ حَلْقُ الْعَانَةِ وَتَقْلِيمُ الأَظْفَارِ وَقَصُّ الشَّارِبِ  

ذِكْرُ الْإِخْبَارِ عَنِ الْأَشْيَاءِ الَّتِي هِيَ مِنَ الْفِطْرَةِ

ibnhibban:5478 – Muḥammad b. al-Ḥusayn b. Khalīl > Hishām b. ʿAmmār > al-Walīd b. Muslim > Ḥanẓalah b. Abū Sufyān > Nāfiʿ > Ibn ʿUmar

[Machine] The Prophet ﷺ said, "The natural disposition is trimming the mustache and clipping the nails and shaving the pubic hair."  

ابن حبّان:٥٤٧٨ – أَخْبَرَنَا مُحَمَّدُ بْنُ الْحُسَيْنِ بْنِ خَلِيلٍ حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ حَدَّثَنَا الْوَلِيدُ بْنُ مُسْلِمٍ حَدَّثَنَا حَنْظَلَةُ بْنُ أَبِي سُفْيَانَ أَنَّهُ سَمِعَ نَافِعًا يُحَدِّثُ عَنِ ابْنِ عُمَرَ

أَنَّ النَّبِيَّ ﷺ قَالَ «الْفِطْرَةُ قَصُّ الشَّارِبِ وَتَقْلِيمُ الْأَظْفَارِ وَحَلْقُ الْعَانَةِ»