Garudapurana 1.67.33

1.67.33

piṅgalāntargate prāṇe śamanīyāhavaṃ jayet /
yāvannāḍyudayaṃ cārastāṃ diśaṃ yāvadāpayet //

When the breath is within the piṅgalā, he will conquer in the battle to be pacified. / As long as the channel is rising in movement, so long should one take that direction;