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
nasai:5051 – Aḥmad b. Sulaymān > Abū Dāwud > Sufyān > ʿUbaydullāh b. ʿUmar > Nāfiʿ > Ibn ʿUmar

"The Messenger of Allah [SAW] forbade Al-Qaza' (to shave part of the head and leave part)."  

النسائي:٥٠٥١ – أَخْبَرَنَا أَحْمَدُ بْنُ سُلَيْمَانَ قَالَ حَدَّثَنَا أَبُو دَاوُدَ عَنْ سُفْيَانَ عَنْ عُبَيْدِ اللَّهِ بْنِ عُمَرَ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ ؓ قَالَ

نَهَى رَسُولُ اللَّهِ ﷺ عَنِ الْقَزَعِ قَالَ أَبُو عَبْدِ الرَّحْمَنِ حَدِيثُ يَحْيَى بْنِ سَعِيدٍ وَمُحَمَّدِ بْنِ بِشْرٍ أَوْلَى بِالصَّوَابِ  

See similar narrations below:

Collected by Nasāʾī's Kubrá
nasai-kubra:9257 – Aḥmad b. ʿAbdah > Ḥammād > ʿUbaydullāh > Nāfiʿ > Ibn ʿUmar

"The Messenger of Allah [SAW] forbade Al-Qaza' (to shave part of the head and leave part)." (Using translation from Nasāʾī 5051)   

الكبرى للنسائي:٩٢٥٧ – أَخْبَرَنَا أَحْمَدُ بْنُ عَبْدَةَ قَالَ أَخْبَرَنَا حَمَّادٌ قَالَ حَدَّثَنَا عُبَيْدُ اللهِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ

أَنَّ النَّبِيَّ ﷺ «نَهَى عَنِ الْقَزَعِ» قَالَ أَبُو عَبْدِ الرَّحْمَنِ وَحَدِيثُ يَحْيَى بْنِ سَعِيدٍ وَمُحَمَّدِ بْنِ بِشْرٍ أَوْلَى بِالصَّوَابِ مِنَ الَّذِي بَعْدَهُمَا وَاللهُ أَعْلَمُ