Bhrigu said : At the time of the season you and your mother after bathing at the proper time must einbrace two different trees, she as Ashvatha tree and you a fig tree.
भृगुरुवाच ऋतौ त्वं चैव माता च स्नाते पुंसवनाय वै। आलिङ्गेतां पृथग् वृक्षौ साश्वत्थं त्वमुदुम्बरम्॥