1. Paṭhama Valāhaka Sutta.– There are four kinds of rain clouds: those that produce thunder but no rain; those that produce rain but, no thunder; those that produce neither; those that produce both. There are four similar kinds of persons: those that speak but do not act; those that act but do not speak; those that do neither; and those that do both. A.ii.102.
2. Dutiya Valāhaka Sutta.– There are four kinds of rain-