At Sāvatthī.

Then the brahmin Jānussoṇi went up to the Buddha, and exchanged greetings with him. Seated to one side he said to the Buddha:

“Master Gotama, does all exist?”

“‘All exists’: this is one extreme, brahmin.”

“Then does all not exist?”

“‘All does not exist’: this is the second extreme.

Avoiding these two extremes, the Realized One teaches by the middle way: ‘Ignorance is a condition for choices.

Choices are a condition for consciousness. … That is how this entire mass of suffering originates. When ignorance fades away and ceases with nothing left over, choices cease. When choices cease, consciousness ceases. … That is how this entire mass of suffering ceases.’”

When he said this, the brahmin Jānussoṇi said to the Buddha, “Excellent, Master Gotama! Excellent! … From this day forth, may Master Gotama remember me as a lay follower who has gone for refuge for life.”

source: https://suttacentral.net