B.G 4.12

काङ्क्षन्तः कर्मणां सिद्धिं यजन्त इह देवताः। क्षिप्रं हि मानुषे लोके सिद्धिर्भवति कर्मजा ॥१२॥

kāṅkṣantaḥ karmaṇāṁ siddhiṁ yajanta iha dēvatāḥ। kṣipraṁ hi mānuṣē lōkē siddhirbhavati karmajā ॥12॥

[काङ्क्षन्तः कर्मणां सिद्धिं यजन्त इह देवताः। क्षिप्रं हि मानुषे लोके सिद्धिः भवति कर्मजा॥
kāṅkṣantaḥ = to desire; karmaṇāṁ = prescribed action; siddhiṁ = accomplishment/success; yajanta = they sacrifice; iha = in this world; dēvatāḥ = to (other) gods;। kṣipraṁ = quickly; hi = certainly; mānuṣē lōkē = in the human world; siddhiḥ = accomplishments; bhavati = are obtained; karmajā = from the prescribed duties;]

Desiring early success for their actions in this world, they sacrifice to other gods. Certainly, they obtain fruition quickly in the human world by the prescribed duties.