Tantrasara (Krishnananda) 2.p71

2.p71

aṣṭotaraśatāvṛttyā gāyatrīṃ prajapetsudhīḥ .
mahāpātakayukto'pi prajapeddaśadhā yadi .
satyaṃ mahādevi mukto bhavati tatkṣaṇāt .
iti daśadhā śaktāśaktabhedena .. 33 ..
gāyatrījapānantaraṃ sarpaṇaṃ vā .

The wise man should recite the gāyatrī with a repetition of one hundred and eight times; / even if endowed with great sins, if he recites it ten times, / truly, O Great Goddess, he becomes liberated at that very moment. / Thus ten times, according to the distinction between capable and incapacitated. (33) / Or water gratification comes after the recitation of the gāyatrī.