kasyānubhāvo 'sya na deva vidmahe
tavāṅghri-reṇu-sparaśādhikāraḥ
yad-vāñchayā śrīr lalanācarat tapo
vihāya kāmān su-ciraṁ dhṛta-vratā
kasya - of what; anubhāvaḥ - a result; asya - of the serpent (Kāliya); na - not; deva - O Lord; vidmahe - we know; tava aṅghri - of Your lotus feet; reṇu - of the dust; sparaśa - for touching; adhikāraḥ - qualification; yat - which; vāñchayā - by desiring; śrīḥ - the goddess of fortune; lalanā - the topmost woman; acarat - performed; tapaḥ - austerity; vihāya - giving up; kāmān - all desires; su-ciram - for a long time; dhṛta - a law upheld; vratā - as a vow.
This verse from Śrīmad-Bhāgavatam (10.16.36) was spoken by the wives of the Kāliya serpent.