I had slain thee — I had slain thee alone, and not her, therefore her turning aside and falling down was wholly for thy benefit, not for her own, and thy anger against her was unjust and unreasonable.
Related Commentaries of Numbers 22:33
Numbers 22:33
33 And the ass saw me, and turned from me these three times: unless she had turned from me, surely now also I had slain thee, and saved her alive.