Verse 20

अथापश्यदसौ गाधिर्यावत्तस्य कलत्रिणः ।जरठः श्वपचेभ्यश्च स्वात्मनो भ्रमहारिणः

In plain words

Then this Gādhi saw -- when he had grown old there among the śvapacas -- that the wife of that householder, of his own delusion-captivated self,