SB 8.6.21

amṛtotpādane yatnaḥ
 kriyatām avilambitam
yasya pītasya vai jantur
 mṛtyu-grasto ’maro bhavet
Synonyms: 
amṛta-utpādane — in generating nectar; yatnaḥ — endeavor; kriyatām — do; avilambitam — without delay; yasya — of which nectar; pītasya — anyone who drinks; vai — indeed; jantuḥ — living entity; mṛtyu-grastaḥ — although in imminent danger of death; amaraḥ — immortal; bhavet — can become.
Translation: 
Immediately endeavor to produce nectar, which a person who is about to die may drink to become immortal.