Nyāya Sūtras 35.4

35.4

udāharaṇena sāmānyāt sādhyasya dharmasya sādhanaṃ prajñāpanaṃ hetuḥ, sādhye pratisandhāya dharmam udāharaṇe ca pratisandhāya tasya sādhanatāvacanaṃ hetuḥ utpattidharmakatvād iti/

The logical reason is the means of proving, the making known of the property to be proved, through similarity to the example. The logical reason is the statement of its probativeness, having apprehended the property in the subject to be proved and having apprehended it in the example, as in: "Because it has the property of having an origin."