Verse 50

घना न वासना यस्य पुनर्जननकारिणी ।बीजाङ्कुरवदेते हि संस्थिते तिलतैलवत्

In plain words

He whose vāsanā is not dense enough to bring about rebirth — these two, indeed, stand together like seed and sprout, like sesame and its oil.