Śatapatha Brāhmaṇa ("of a hundred paths") 3.4.1.16

3.4.1.16

kārṣmaryamayāḥ paridhayaḥ | devā ha vā etaṃ vanaspatiṣu rākṣoghnaṃ dadṛśuryatkārṣmaryaṃ śiro vai yajñasyātithyaṃ neciro yajñasya nāṣṭrā rakṣāṃsi hinasanniti tasmātkārṣmaryamayāḥ paridhayo bhavanti

The enclosing-sticks are of kârshmarya wood (Gmelina Arborea), for the gods, once upon a time, perceived that one, the kârshmarya, to be the Rakshas-killer among trees. Now, the guest-offering being the head of the sacrifice, the enclosing-sticks are of kârshmarya wood, in order that the evil spirits may not injure the head of the sacrifice.