Bhagavad Gita · 3.14

अन्नाद्भवन्ति भूतानि पर्जन्यादन्नसम्भवः।यज्ञाद्भवति पर्जन्यो यज्ञः कर्मसमुद्भवः॥

annād bhavanti bhūtāni parjanyād anna-sambhavaḥ yajñād bhavati parjanyo yajñaḥ karma-samudbhavaḥ

All living beings are sustained by food; food is produced by rain; rain comes from sacrifice; and sacrifice is born of action.

— Bhagavad Gita 3.14

Source: Sacred-Texts.com (Sanskrit) + Bhagavad-Gita.io (translations)