Garudapurana 3.29.15

3.29.15

vairāgyamevaṃ prakārotyeva nityamataḥ parjanyastvantakaḥ pakṣivarya /
etāvatā śarabhākhyo mahātmā sa cāntaro sa tu parjanya eva //

Thus he constantly produces dispassion; therefore, Parjanya is the ender, O best of birds. / To that extent, that great soul is named Śarabha, and he is internal, but he is indeed Parjanya.