Yahya related to me from Malik from Nafi that Abdullah ibn Urnar used to say, "The least thing that is acceptable as a sacrificial animal is a camel or a cow."
أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ كَانَ يَقُولُ مَا اسْتَيْسَرَ مِنَ الْهَدْى بَدَنَةٌ أَوْ بَقَرَةٌ