The classic is the Buddhist scripture "The Heart Sutra of Prajñāpāramitā" part two.

The Dharma abides in the present moment, and I recommend that you distribute the sutra texts far and wide. But has it truly been shared? The recitation and chant versions are on my blog. Have they been listened to or read every day after waking up? After merely studying the meaning of the word "Prajñā" in the Heart Sutra, BLOGGER returned to normal in China, shining with spiritual insight and benefiting all beings. Amidst playing in the mountains and rivers, worldly attachments loosen, flowers wither, people have their ups and downs, but is there a return to the shore of awakening? In Buddhism, there are nearly ten thousand scriptures divided into three collections and twelve categories, yet the "Heart Sutra of Prajñāpāramitā" contains only about two hundred characters. It is the Buddhist scripture with the fewest words, richest in meaning, and most widely circulated.