Mbh 1.1.15

I am (continued Sauti) acquainted with eight thousand and eight hundred verses, and so is Suka, and perhaps Sanjaya. From the mysteriousness of their meaning, O Muni, no one is able, to this day, to penetrate those closely knit difficult slokas. Even the omniscient Ganesa took a moment to consider; while Vyasa, however, continued to compose other verses in great abundance.