The short Viṣṇusmṛti of the eighteen-smṛti collections 16

16

pumān vimucyate sadyaḥ siṃhatrastairmṛgairiva
omityeva paraṃ brahma śāśvataṃ paramavyayam

is instantly freed from all sins, just like deer terrified by a lion. / Om alone is the supreme Brahman, eternal, ultimate, imperishable.