The Prophet ﷺ said: A boy is in pledge for his Aqiqah, Sacrifice is made for him on the seventh day, his head is shaved and he is given name. Abu Dawud said: The word wa yusamma is sounder as narrated by Salam b. Abi Muti' from Qatadah, and narrated by Iyas b. Daghfal and Ash'ath from al-Hassan who narrated wa yusamma (and he is given a name).  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ كُلُّ غُلاَمٍ رَهِينَةٌ بِعَقِيقَتِهِ تُذْبَحُ عَنْهُ يَوْمَ سَابِعِهِ وَيُحْلَقُ وَيُسَمَّى  

The Messenger of Allah ﷺ as saying: Along with a boy there is an 'Aqiqah, so shed blood on his behalf, and remove injury from him.  

قَالَ رَسُولُ اللَّهِ ﷺ مَعَ الْغُلاَمِ عَقِيقَتُهُ فَأَهْرِيقُوا عَنْهُ دَمًا وَأَمِيطُوا عَنْهُ الأَذَى  

To remove the injury is the shaving of the head.  

أَنَّهُ كَانَ يَقُولُ إِمَاطَةُ الأَذَى حَلْقُ الرَّأْسِ  

The Messenger of Allah ﷺ sacrificed a ram for both al-Hasan and al-Husayn each (Allah be pleased with them).  

أَنَّ رَسُولَ اللَّهِ ﷺ عَقَّ عَنِ الْحَسَنِ وَالْحُسَيْنِ كَبْشًا كَبْشًا  

On his father's authority, said that his grandfather that the Messenger of Allah ﷺ was asked about the aqiqah. He replied: Allah does not like the breaking of ties (uquq), as though he disliked the name. And he said: If anyone has a child born to him and wishes to offer a sacrifice on its behalf, he may offer two resembling sheep for a boy and one for a girl. And he was asked about fara'. He replied: Fara' is right. If you leave it (i.e. let it grow till it becomes a healthy camel of one year or two years, then you give it to a widow or give it in the path of Allah for using it as a riding beast, it is better than slaughtering it at the age when its meat is stuck to its hair, and you turn over your milking vessel and annoy your she-camel.  

أَنَّ النَّبِيَّ ﷺ ح وَحَدَّثَنَا مُحَمَّدُ بْنُ سُلَيْمَانَ الأَنْبَارِيُّ حَدَّثَنَا عَبْدُ الْمَلِكِ يَعْنِي ابْنَ عَمْرٍو عَنْ دَاوُدَ عَنْ عَمْرِو بْنِ شُعَيْبٍ عَنْ أَبِيهِ أُرَاهُ عَنْ جَدِّهِ قَالَ سُئِلَ رَسُولُ اللَّهِ ﷺ عَنِ الْعَقِيقَةِ فَقَالَ لاَ يُحِبُّ اللَّهُ الْعُقُوقَ كَأَنَّهُ كَرِهَ الاِسْمَ وَقَالَ مَنْ وُلِدَ لَهُ وَلَدٌ فَأَحَبَّ أَنْ يَنْسُكَ عَنْهُ فَلْيَنْسُكْ عَنِ الْغُلاَمِ شَاتَانِ مُكَافِئَتَانِ وَعَنِ الْجَارِيَةِ شَاةٌ وَسُئِلَ عَنِ الْفَرَعِ قَالَ وَالْفَرَعُ حَقٌّ وَأَنْ تَتْرُكُوهُ حَتَّى يَكُونَ بَكْرًا شُغْزُبًّا ابْنَ مَخَاضٍ أَوِ ابْنَ لَبُونٍ فَتُعْطِيَهُ أَرْمَلَةً أَوْ تَحْمِلَ عَلَيْهِ فِي سَبِيلِ اللَّهِ خَيْرٌ مِنْ أَنْ تَذْبَحَهُ فَيَلْزَقَ لَحْمُهُ بِوَبَرِهِ وَتُكْفِئَ إِنَاءَكَ وَتُوَلِّهَ نَاقَتَكَ  

When a boy was born to one of us in the pre-Islamic period, we sacrificed a sheep and smeared his head with its blood; but when Allah brought Islam, we sacrificed a sheep, shaved his head and smeared his head with saffron.  

سَمِعْتُ أَبِي بُرَيْدَةَ يَقُولُ كُنَّا فِي الْجَاهِلِيَّةِ إِذَا وُلِدَ لأَحَدِنَا غُلاَمٌ ذَبَحَ شَاةً وَلَطَخَ رَأْسَهُ بِدَمِهَا فَلَمَّا جَاءَ اللَّهُ بِالإِسْلاَمِ كُنَّا نَذْبَحُ شَاةً وَنَحْلِقُ رَأْسَهُ وَنَلْطَخُهُ بِزَعْفَرَانٍ