अग्निनिचयः (Agninichaya) / The Accumulation of Sacred Fire & the Classification of Pitṛs by Time-Order
रुद्र उवाच सर्वेषामेव लोकानां भूर्लोकस्त्वादिरुच्यते / तं सदा धारयिष्यामि निदेशात्परमेष्ठिनः
rudra uvāca sarveṣāmeva lokānāṃ bhūrlokastvādirucyate / taṃ sadā dhārayiṣyāmi nideśātparameṣṭhinaḥ
Rudra said: Of all the worlds, Bhūrloka is spoken of as the first. By the command of Parameṣṭhin, I shall uphold it forever.