維摩經略疏 2.143

2.143

「隨佛土淨則說法淨」者，若穢土說法則如長者執除糞器，此則赴緣說苦切之法。如淨名為香積土諸來菩薩說此土折伏之法，不說諸法實相清淨之教。若淨土說法，但說諸法實相清淨法門，名說法淨。

"According to the purification of the buddha-land, the preaching of the Dharma is pure": if the Dharma is preached in a defiled land, it is like the elder holding a vessel for removing dung; here one responds to conditions by preaching painful and severe teachings. Just as Vimalakīrti preached to the bodhisattvas coming from the land of Sarvagandhasugandha the teachings of subduing belonging to this land, not preaching the pure teaching of the true reality of all dharmas. If the Dharma is preached in a pure land, one only preaches the pure Dharma-door of the true reality of all dharmas; this is called the purity of preaching the Dharma.