 पुरस्तादिह वातापिः परिभूय तपस्विनः।उदरस्थो द्विजान्हन्तिस्वगर्भोऽश्वतरीमिव।। 
 Earlier in this forest, Vatapi used to humiliate the ascetic brahmins and to kill them by entering into their stomach like a womb killing the female mule. 