✅Answer: Please pay attention to the following narration:

1 عَمَّارٍ عَنْ أَبِي عَبْداللَّه قال: وَ سَأَلْتُهُ عَنِ الْعَقِيقَةِ عَنِ الْمَوْلُودِ كَيْفَ هِيَ قَالَ إِذَا أَتَى لِلْمَوْلُودِ سَبْعَةُ أَيَّامٍ سُمِّيَ بِالاسْمِ الَّذِي سَمَّاهُ اللَّهُ عَزَّ وَ جَلَّ بِهِ ثُمَّ يُحْلَقُ رَأْسُهُ وَ يُتَصَدَّقُ بِوَزْنِ شَعْرِهِ ذَهَباً أَوْ فِضَّةً وَ يُذْبَحُ عَنْهُ كَبْشٌ وَ إِنْ لَمْ يُوجَدْ كَبْشٌ أَجْزَأَ عَنْهُ مَا يُجْزِي فِي الْأُضْحِيَّةِ وَ إِلَّا فَحَمَلٌ أَعْظَمُ مَا يَكُونُ مِنْ حُمْلَانِ السَّنَةِ

📚Al-Kafi, Vol. 6, p. 28

Ammar said: 'I asked Imam Sadiq (peace be upon him) about the 'Aqiqah for a newborn, what is it like?' He said: 'When the newborn reaches 7 days of age, he is named with the name that God Almighty has named him, and then his head is shaved, and gold or silver equal to its weight is given as charity, and a male sheep is sacrificed on his behalf. So if a male sheep is not found, what is sufficient for the sacrifice of Eid al-Adha is sufficient for it, otherwise, a ewe lamb from the largest ewe lambs of that year is sufficient!'

2 مُحَمَّدِ بْنِ مارِد عَنْ أَبِي عَبْداللَّه قَالَ: سَأَلْتُهُ عَنِ الْعَقِيقَةِ فَقَالَ شَاةٌ أَوْ بَقَرَةٌ أَوْ بَدَنَةٌ

📚Faqih, Vol. 3, p. 485

Muhammad ibn Marid said: 'I asked Imam Sadiq (peace be upon him) about the 'Aqiqah.' He said: 'A sheep, a cow, or a camel!'

✅ What is specified in most narrations for 'Aqiqah is a 'kabsh', which means a male sheep (horned or a ram), and in narration 1, it is stated that if a male sheep is not found, what is sufficient for the sacrifice of Eid al-Adha is sufficient.

Now we will review some narrations about what is sufficient for the sacrifice of Eid al-Adha:

3 عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَحَدِهِمَا أَنَّهُ سُئِلَ عَنِ الْأُضْحِيَّةِ فَقَالَ أَقْرَنُ فَحْلٌ سَمِينٌ عَظِيمُ الْعَيْنِ وَ الْأُذُنِ وَ الْجَذَعُ مِنَ الضَّأْنِ يُجْزِي وَ الثَّنِيُّ مِنَ الْمَعْزِ

📚 Al-Tahdhib, Vol. 5, p. 205

Muhammad ibn Muslim asked Imam Baqir or Imam Sadiq (peace be upon them both) about the sacrifice of Eid al-Adha. The Imam said: 'A fat, large-eyed and large-eared horned male sheep and a six-month-old sheep are sufficient, and a goat that has completed one year and entered its second year is sufficient!'

4 أَبِي بَصِير قال: سَأَلْتُ أَبَا عَبْداللَّه عَنِ النَّعْجَةُ أَحَبُّ إِلَيْكَ أَمِ الْمَاعِزُ قَالَ إِنْ كَانَ الْمَاعِزُ ذَكَراً فَهُوَ أَحَبُّ إِلَيَّ وَ إِنْ كَانَ الْمَاعِزُ أُنْثَى فَالنَّعْجَةُ أَحَبُّ إِلَيَّ

📚Al-Kafi, Vol. 4, p. 490

Abu Basir said: 'I asked Imam Sadiq (peace be upon him) whether a ewe (for the Eid sacrifice) is more beloved to you or a goat?' He said: 'If it is a male goat, it is more beloved to me, and if it is a female goat, a ewe is more beloved to me!'

5 قَال وَ رُوِيَ أَنَّهُ لَا يُجْزِي فِي الْأَضَاحِيِّ مِنَ الْبُدْنِ إِلَّا الثَّنِيُّ وَ هُوَ الَّذِي تَمَّ لَهُ خَمْسُ سِنِينَ وَ دَخَلَ فِي السَّادِسَةِ وَ يُجْزِي مِنَ الْمَعْزِ وَ الْبَقَرِ الثَّنِيُّ وَ هُوَ الَّذِي تَمَّ لَهُ سَنَةٌ وَ دَخَلَ فِي الثَّانِيَةِ وَ يُجْزِي مِنَ الضَّأْنِ الْجَذَعُ لِسَنَةٍ

📚 Al-Faqih, Vol. 2, p. 491

Shaykh Saduq said: 'It is narrated that for sacrifices, a camel is not sufficient unless it is a thanni, which is one that has completed 5 years and entered its sixth year. And for a goat and a cow, a thanni, which is one that has completed one year and entered its second year, is sufficient. And for a sheep, (at least) a six-month-old from that year is sufficient!'

6 عيص بن القَاسم عن أَبِي عبداللَّه عَنْ عَلِيٍّ أَنَّهُ كَانَ يَقُولُ الثَّنِيَّةُ مِنَ الْإِبِلِ وَ الثَّنِيَّةُ مِنَ الْبَقَرِ وَ الثَّنِيَّةُ مِنَ الْمَعْزِ وَ الْجَذَعَةُ مِنَ الضَّأْن

📚Tahdhib, Vol. 5, p. 206

Ali (peace be upon him) used to say: 'A five-year-old camel that has entered its sixth year, a one-year-old cow that has entered its second year, a one-year-old goat that has entered its second year, and a six-month-old sheep (are sufficient for the sacrifice).'

7 عن ابن سنان قال سَمِعْتُ أَباعبداللَّه يَقُولُ يُجْزِي مِنَ الضَّأْنِ الْجَذَعُ وَ لَا يُجْزِي مِنَ الْمَعْزِ إِلَّا الثَّنِيُّ

📚Tahdhib, Vol. 5, p. 206

Ibn Sinan said: 'I heard Imam Sadiq (peace be upon him) say: 'A six-month-old sheep (for the Eid sacrifice) is sufficient, but for a goat, nothing is sufficient except one that has completed one year and entered its second year!'

✅ According to the above narrations and others, for 'Aqiqah, besides a male (horned) sheep that is at least six months old, which is specified in many narrations for 'Aqiqah, a (male) goat is also suitable for 'Aqiqah in one of the ranks, but it must have completed at least one year and entered its second year.