Apastambadharmasutra 1.1.2.2

1.1.2.2

saptabhiḥ pāvamānībhir "yad anti yac ca dūraka" iti etābhir yajuspavitreṇa sāmapavitreṇa-āṅgiraseṇa-iti /

(They should bathe daily reciting) the seven [paragraph continues] Pâvamânîs, beginning with 'If near or far,' the Yagushpavitra, ('May the waters, the mothers purify us,' &c.) the Sâmapavitra, ('With what help assists,' &c.), and the Âṅgirasapavitra ('A swan, dwelling in purity'),