Verse 23

जीवन्मुक्तमना मान्यो विश्वामित्रोऽप्ययं प्रभुः ।वेदोक्तां मखनिर्माणक्रियां समधितिष्ठति

In plain words

This venerable lord Viśvāmitra too, his mind that of a jīvanmukta, engages fully in the rite of constructing the sacrifice as declared by the Veda.