p. 223
यत्र यस्मिन् मृगगोचरादिपीडारहिते देशे अन्नपानादि भूयिष्ठं बहुलं विद्यत इति मन्येत प्रावृषीव वर्षाकाले तृणोदकं बहुलं विद्यते तद्वत् ।तृणोल्लपमिति केचित्—‘तृणोल्लपमिति ख्यातो मुनिभोज्योदनादिषु’ इति वदन्ति ।पूज्यदूर्वाविशेष इति केचित् ।तत्र स्थित्वा तत् अन्नपानादिकमुपजीवेत् ।
In plain words
In a place free from dangers like predators, where food and water are as plentiful as grass during the monsoon—or what some call 'tṛṇollapa', known among foods fit for sages, or as others say, a special sacred grass—residing there, he should sustain himself.
Close to the Sanskrit
Where, in a region free from troubles like animal pastures, food and drink and the like are abundant, as grass and water are abundant in the rainy season, similarly—'tṛṇollapa' as some say—'known among foods fit for sages' thus they speak; a special revered dūrvā grass as some say. Having stayed there, one should subsist on that food and drink.