A blemish of Pratilekhanā (inspection of monastic paraphernalia);
it is pertaining to the re-counting of the number of times the cloth has been inspected; according to the rule, regarding prasphoṭana (i.e., to shake the cloth), the cloth should be shaken six times (three times on each side) by dividing the cloth in three parts on each side, and pramārjana (i.e., to remove the insect etc. from the cloth and put it aside) which is done thrice in each Ṣaṭ Pūrva (i.e., six times shaking of cloth), thus total number of Khotaka (pramārjana) is eighteen times; now, during the performance, if a doubt regarding the counting of number occurs, and if re-counting is done, then it amounts to the blemish of Gaṇanopaga.
pramāne-prasphotadisarnkhyalaksanepramādam-anavadhānam yacca śamkite-pramādatali pramānam prati śankotpatau gananām karāngulirekhāsparśanādinaikadvitrisainkhyātmikāmiipagacchati-npayāti gananopagam.
(U 26.27 ŚāVr Pa 542)