Shatapatha Brahmana 11.1.6.9

11.1.6.9

so'vet pāpmānaṃ vā asṛkṣi yasmai me sasṛjānāya tama ivābhūditi tāṃstata eva pāpmanāvidhyatte tata eva parābhavaṃstasmādāhurnaitadasti yaddaivāsuraṃ yadidamanvākhyāne tvadudyata itihāse tvattato hyeva tānprajāpatiḥ pāpmanāvidhyatte tata eva parābhavanniti

He knew, 'Verily, I have created evil for myself since, after creating, there has come to be, as it were, darkness for me.' Even then he smote them with evil, and owing to this it was that they were overcome; whence people say, 'Not true is that regarding (the fight between) the gods and Asuras which is related partly in the tale and partly in the legend; for it was even then that Pragâpati smote them with evil, and it was owing to this that they were overcome.'