At Sāvatthī.
“Mendicants, there are these five grasping aggregates. What five? That is, the grasping aggregates of form, feeling, perception, choices, and consciousness. A noble disciple comes to truly understand these five grasping aggregates’ origin, ending, gratification, drawback, and escape. Such a noble disciple is called a stream-enterer, not liable to be reborn in the underworld, bound for awakening.”
Read this translation of Saṁyutta Nikāya 22.109 Sotāpannasutta: A Stream-Enterer by Bhikkhu Sujato on SuttaCentral.net. Or read a different translation on SuttaCentral.net. Or listen on SC-Voice.net. Or explore the Pali on the Digital Pali Reader.