Rasarnavasudhakara 2.83

2.83

atha varṣāvegaḥ-
chatra-graho' ṅga-saṅkoco bāhu-svastika-dhāvane | 38
uṣṇāśrayaṇam ity ādyā varṣāvega-bhavāḥ kriyāḥ ||

Now, agitation from rain:
Holding an umbrella, contracting the limbs, crossing the arms and running,
seeking warm shelter, and the like are actions arising from agitation caused by rain.