vii. 3. 12.

The past, the present, the future, Vasat, hail, reverence!
The Rc, the Saman, the Yajus, Vasat, hail, reverence!
The Gayatri, the Tristubh, the Jagati, Vasat, hail, reverence!
The earth, the atmosphere, the sky, Vasat, hail, reverence!
Agni, Vayu, Surya, Vasat, hail, reverence!
Expiration, cross-breathing, inspiration, Vasat, hail, reverence!
Food, ploughing, rain, Vasat, hail, reverence!
Father, son, grandson, Vasat, hail, reverence!
Bhuh, Bhuvah, Suvar, Vasat, hail, reverence!