Sunan Ibn Majah, Volume 4, Book 27, Hadith 3165 (DarusSalam) ⓘ
It was narrated from Samurah that the Prophet said: “Every boy is mortgaged by his ‘Aqiqah, so slaughter for him on the seventh day, and shave his head, and name him.”
حَدَّثَنَا هِشَامُ بْنُ عَمَّارٍ، حَدَّثَنَا شُعَيْبُ بْنُ إِسْحَاقَ، حَدَّثَنَا سَعِيدُ بْنُ أَبِي عَرُوبَةَ، عَنْ قَتَادَةَ، عَنِ الْحَسَنِ، عَنْ سَمُرَةَ، عَنِ النَّبِيِّ ـ صلى الله عليه وسلم ـ قَالَ " كُلُّ غُلاَمٍ مُرْتَهَنٌ بِعَقِيقَتِهِ تُذْبَحُ عَنْهُ يَوْمَ السَّابِعِ وَيُحْلَقُ رَأْسُهُ وَيُسَمَّى " .
also referenced under: Hadith 3165 (Reference) & Book 27, Hadith 3285 (In-Book)