Bhagavad Gita · 4.12

काङ्क्षन्तः कर्मणां सिद्धिं यजन्त इह देवताः।क्षिप्रं हि मानुषे लोके सिद्धिर्भवति कर्मजा॥

kāṅkṣhantaḥ karmaṇāṁ siddhiṁ yajanta iha devatāḥ kṣhipraṁ hi mānuṣhe loke siddhir bhavati karmajā

Those who desire the fruits of their actions in this world worship the celestial gods, for success born of action comes quickly in the human world.

— Bhagavad Gita 4.12

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