Sacrifice of a feeble

अश्वं नैव गजं नैव व्याघ्रं नैवच नैवच,

अजापुत्रं बलिं दद्यात, दैवो दुर्बलघातक:

Ashwam Naiva Gajam Naiva Vyaghra Naivach,

Ajaputram Bali Dadhyat, Daivo Durbalghatakam.

Not horse, not elephant, not tiger, 
but only the lamb is sacrificed in a ritual.
God also does not protect weak.