Gathering quotes from the The Sutra of Innumerable Meanings, here’s the Buddha’s response to a question from Magnificently Adorned Bodhisattva (Reeves, p42):

“Good son, you ask where this sutra comes from, where is it headed, and where it will live. Now you should listen carefully. Good son, this sutra originally comes from the home of all the buddhas, goes toward the aspiration for awakening of all the living, and lives wherever bodhisattvas practice. Good son, this sutra comes like this, goes like this, and lives like this. Thus, having such innumerable blessings and amazing powers, this sutra enables people to attain unexcelled awakening quickly.”