عَنْ أُمِّ بَنِي كُرْزٍ الْكَعْبِيَّةِ رَضِيَ اللَّهُ عَنْهَا أَنَّهَا سَأَلَتْ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ عَنِ الْعَقِيقَةِ فَقَالَ عَنِ الْغُلَامِ شَاتَانِ مُكَافَأَتَانِ وَعَنِ الْجَارِيَةِ شَاةٌ قُلْتُ لِعَطَاءٍ مَا الْمُكَافَأَتَانِ قَالَ الْمِثْلَانِ
It is narrated from Sayyida Umm Bani Karz Ka'biyyah (may Allah be pleased with her) that she asked the Messenger of Allah (peace and blessings be upon him) about 'Aqiqah. He (peace and blessings be upon him) said: "Two similar goats for a boy and one goat for a girl." The narrator says: I asked 'Ata: What is meant by "al-mukafa'atan"? He said: "Similar."