Verse 37

रुरोध गुदसंकोच्चान्नवद्वारानिलानथ ।मुखसंस्थगितः कुम्भो रन्ध्रकोशानिवेतरान्

In plain words

Then, by contracting the anus, he restrained the winds of the nine gates — as a jar, its mouth stopped up, holds in the air of its other hollows.