dṛṣṭānto 'pi sandigdhasādhyadharmatvād asiddhaḥ // bhavatu vā dṛṣṭāntasya siddhis tatrāpi na dṛṣṭamātreṇeṣṭasiddhir yukteti darśayann āha hetvityādi /
The example too is inadmissible because the property to be proved is doubtful. Or even if the example were established, showing that mere observation does not properly establish what is desired, [the author] states [the words] beginning with "hetu."