On the constellations (nakṣatra-karmaguṇa) - Verse 16

The various ceremonies of purification, religious rites, the practice of austerities and the wearing of Zone or the Sacred belt shall be commenced when the Moon passes through the asterism of Hasta, Revatī, Svāti, Anurādhā, Puṣya and Citrā, and when Jupiter is in conjunction with Mercury, Venus or the Moon.