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.
bukhari:171Muḥammad b. ʿAbd al-Raḥīm > Saʿīd b. Sulaymān > ʿAbbād > Ibn ʿAwn > Ibn Sīrīn > Anas

When Messenger of Allah ﷺ got his head shaved, Abu- Talha was the first to take some of his hair.  

البخاري:١٧١حَدَّثَنَا مُحَمَّدُ بْنُ عَبْدِ الرَّحِيمِ قَالَ أَخْبَرَنَا سَعِيدُ بْنُ سُلَيْمَانَ قَالَ حَدَّثَنَا عَبَّادٌ عَنِ ابْنِ عَوْنٍ عَنِ ابْنِ سِيرِينَ عَنْ أَنَسٍ

أَنَّ رَسُولَ اللَّهِ ﷺ لَمَّا حَلَقَ رَأْسَهُ كَانَ أَبُو طَلْحَةَ أَوَّلَ مَنْ أَخَذَ مِنْ شَعَرِهِ