華嚴一乘教義分齊章 4.44

4.44

二、言解釋者，亦以十門釋前十義，以顯無盡。問：「何以得知十數顯無盡耶？」答：「依《華嚴經》中立十數為則以顯無盡義。」

Second, explaining: it also uses ten doors to explain the preceding ten principles in order to reveal the inexhaustible. Question: "How is it known that the number ten reveals the inexhaustible?" Answer: "It relies on the Avataṃsaka-sūtra, which establishes the number ten as a rule to reveal the meaning of the inexhaustible."