Rudra-prasava-varṇana
The Manifestation and Naming of Rudra / Nīlalohita
पशूनां त्वं पतिर्देव इत्युक्तः सो ऽरुदत्पुनः / किं रोदिषीति तं ब्रह्मा रुदन्तं पुनरब्रवीत्
paśūnāṃ tvaṃ patirdeva ityuktaḥ so 'rudatpunaḥ / kiṃ rodiṣīti taṃ brahmā rudantaṃ punarabravīt
When told, “O deva, you are the lord of beings (paśu),” he wept again. Brahmā spoke once more to him as he cried, “Why do you weep?”