यदा लेलायते ह्यर्चिः समिद्धे हव्यवाहने ।तदाज्यभागावन्तरेणाहुतीः प्रतिपादयेत् ॥ २ ॥
In plain words
When the flame of the well-kindled sacrificial fire flickers and quivers, then he should offer the oblations, placed between the two portions of clarified butter.