首楞嚴義疏注經 7.105

7.105

五穀謂麻黍稷麥豆。十億曰兆。聖法在處尚無惡夢，況餘災橫耶。

"Five grains" refers to hemp, millet, panicled millet, wheat, and beans. A billion is called a "myriad" (zhào). Wherever the sacred Dharma is present, there are not even nightmares, much less other untimely disasters!