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
tabarani:16475 – Muṣʿab b. Ibrāhīm b. Ḥamzah al-Zubayrī from my father > ʿAbd al-ʿAzīz b. Muḥammad al-Darāwardī > Mūsá b. ʿUqbah > Nāfiʿ > a man from al-Anṣār > Kaʿb b. ʿUjrah

[Machine] He was hurt in his head, so the Prophet instructed him to shave his head and sacrifice a cow.  

الطبراني:١٦٤٧٥ – حَدَّثَنَا مُصْعَبُ بْنُ إِبْرَاهِيمَ بْنِ حَمْزَةَ الزُّبَيْرِيُّ حَدَّثَنِي أَبِي أنا عَبْدُ الْعَزِيزِ بْنُ مُحَمَّدٍ الدَّرَاوَرْدِيُّ عَنْ مُوسَى بْنِ عُقْبَةَ عَنْ نَافِعٍ عَنْ رَجُلٍ مِنَ الْأَنْصَارِ عَنْ كَعْبِ بْنِ عُجْرَة

«أَنَّهُ أَصَابَهُ أَذًى فِي رَأْسِهِ فَأَمَرَهُ النَّبِيُّ ﷺ أَنْ يَحْلِقَ وَيَفْدِيَ بِبَقَرَةٍ»  

See similar narrations below:

Collected by Abū Dāwūd
abudawud:1859 – Qutaybah b. Saʿīd > al-Layth > Nāfiʿ > a man from al-Anṣār

A man from the Ansar said on the authority of Ka'b ibn Ujrah that he was feeling pain in his head (due to lice); so he shaved his head. The Prophet ﷺ ordered him to sacrifice a cow as offering.  

أبو داود:١٨٥٩ – حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ حَدَّثَنَا اللَّيْثُ عَنْ نَافِعٍ أَنَّ رَجُلاً مِنَ الأَنْصَارِ

أَخْبَرَهُ عَنْ كَعْبِ بْنِ عُجْرَةَ وَكَانَ قَدْ أَصَابَهُ فِي رَأْسِهِ أَذًى فَحَلَقَ فَأَمَرَهُ النَّبِيُّ ﷺ أَنْ يُهْدِيَ هَدْيًا بَقَرَةً