藥師經疏 1.117

1.117

經。隨於何等至悉令滿足　二弘護。阿蘭拏處者。亦名阿蘭若。或阿練若。皆同也。瑜伽二十五說。云何名為住阿練若。謂住空閑山林坰野受用邊際所有臥具遠離一切村邑聚落。如是名為住阿練若。問幾許名一阿練若。俱舍十二云。十二指為一搩手。二十四指為一肘。四肘為一弓。五百卷為一阿練若。謂在在處處流布此經。受持如來名號。親近供養者。我等神將并及眷屬為正法故。常護是人。皆便解脫一切苦難諸有所求悉令滿足。

Sūtra: "Wherever... cause all to be fulfilled."
Two: propagating protection. An "araṇya place" (araṇya-āyatana) is also called araṇya (elanruo or alianruo); they are all the same. Fascicle twenty-five of the Yogācārabhūmi-śāstra says: "What is meant by dwelling in an araṇya? It means dwelling in empty, quiet mountain forests and wildernesses, making use of bedding and seats at the periphery, keeping far away from all villages, towns, and settlements. This is called dwelling in an araṇya." Question: "How far is considered one araṇya?" Fascicle twelve of the Abhidharmakośa-bhāṣya says: "Twelve finger-breadths make one span; twenty-four finger-breadths make one cubit; four cubits make one bow; five hundred bows make one araṇya." It means that wherever this sūtra is circulated, and where people uphold the Tathāgata's name, draw near, and make offerings, we spiritual generals together with our retinues, for the sake of the true Dharma, will constantly protect these people, so that they will all be liberated from all suffering and difficulties, and all their wishes will be fulfilled.