華嚴一乘教義分齊章 2.51

2.51

若依頓教，一切時分皆不可說，但一念不生即是佛故。一念者，即無念也；時者，即無時也。餘可準思。

According to the sudden teaching, all temporal divisions are inexpressible, because merely not giving rise to a single thought-moment is itself the Buddha. A single thought-moment is precisely no-thought; time is precisely no-time. The rest can be inferred and contemplated accordingly.