"Every boy is in pledge for his 'Aqiqah, so slaughter (the animal) for him on the seventh day, and shave his head, and a name"  

عَنْ رَسُولِ اللَّهِ ﷺ قَالَ كُلُّ غُلاَمٍ رَهِينٌ بِعَقِيقَتِهِ تُذْبَحُ عَنْهُ يَوْمَ سَابِعِهِ وَيُحْلَقُ رَأْسُهُ وَيُسَمَّى  

"Muhammad bin Sirin said to me: 'Ask Al-Hasan (Al-Basri) from whom he heard this Hadith about the 'Aqiqah.' I asked him about that and he said: 'I heard it from Samurh."'  

سَمِعْتُهُ مِنْ سَمُرَةَ