大方廣佛華嚴經隨疏演義鈔 26.46

26.46

疏「淨名足指案地」者，即〈佛國品〉說，隨其心淨則佛土淨。爾時舍利弗承佛威神，作是念言：「若菩薩心淨則佛土淨者，我世尊本為菩薩道時意豈不淨？而是佛土不淨若此。」佛即答云：「我此土淨，而汝不見。」爾時世尊即以足指案地，即時三千大千世界若干百千眾寶莊嚴土。一切大眾歎未曾有，而皆自見坐寶蓮華等是也。

Regarding the Commentary's statement 'Vimalakīrti pressing the earth with his toe,' this is expounded in the 'Buddha Land' chapter: in accordance with the purity of their mind, the Buddha-land is pure. At that time Śāriputra, receiving the Buddha's spiritual power, thought: 'If the Buddha-land is pure in accordance with the bodhisattva's pure mind, could it be that when our World-Honoured One formerly practiced the bodhisattva path, his mind was not pure, such that this Buddha-land is impure like this?' The Buddha then replied: 'This land of mine is pure, yet you do not see it.' At that time the World-Honoured One pressed the earth with his toe, and immediately the trichiliocosm became a land adorned with several hundreds of thousands of various jewels. The entire great assembly praised it as unprecedented, and all saw themselves seated on jeweled lotuses, and so forth; this is it.