SB 12.6.21

tac chrutvājuhuvur viprāḥ
 sahendraṁ takṣakaṁ makhe
takṣakāśu patasveha
 sahendreṇa marutvatā
Word for word: 
tat — that; śrutvā — hearing; ājuhuvuḥ — they performed the ritual of offering oblation; viprāḥ — the brāhmaṇa priests; saha — along with; indram — King Indra; takṣakam — the snake-bird Takṣaka; makhe — into the sacrificial fire; takṣaka — O Takṣaka; āśu — quickly; patasva — you should fall; iha — here; saha indreṇa — together with Indra; marut-vatā — who is accompanied by all the demigods.
Translation: 
Hearing this, the priests then chanted this mantra for offering Takṣaka together with Indra as an oblation into the sacrificial fire: O Takṣaka, fall immediately into this fire, together with Indra and his entire host of demigods!