The rain of Buddha-truth which fertilizes all beings.

A Dictionary of Chinese Buddhist Terms, William Edward Soothill and Lewis Hodous

以雨來比喻佛之教法。佛法滋潤眾生，令由迷妄而至證悟，猶如雨之普澤草木，使其生長，而至開花結果，故以雨譬喻之。北本涅槃經卷二（大一二‧三七二上）：「無上法雨，雨汝身田，令生法芽。」〔法華經卷一序品、無量壽經卷上〕

佛光電子大辭典

p3365

dharma-varṣa; dharma-megha, dharma-salila, dharmāmbu, dharmāmbhas, dharmogha, saddharma-varṣa

佛教漢梵大辭典

P1966

法雨 (fǎ yŭ) 　( “the rain of the Dharma” ) Cf. 大法雨(dà fǎ yŭ), 時法雨(shí fǎ yŭ) ;

{《漢語大詞典》5.1038a(佛典)} ; {《大漢和辞典》6.1044c(佛典)} ;

Dharmarakṣa: {67c24} 今者分別 當雨法雨 柔軟法教(v)

{K.28.10} dharma-m-anantavarṣa~

Kumārajīva: {L.5b21} 法雨

Dharmarakṣa: {84b14} 尋興慧雲 而降法雨(v)

{K.128.13} vāri~

Kumārajīva: {L.20a20} 法雨

Dharmarakṣa: {84c20} 以佛(J etc.佛以)法雨 多所安隱 普潤天下 有所成就(v)

{K.130.9} dharmavarṣa~

Kumārajīva: {L.20b6} 法雨

A Digital Edition of A Glossary of Dharmarakṣa translation of the Lotus Sutra by Seishi Karashima, 1998