Natyashastra
तत्रापि वामवेधस्तु विक्षेपो दक्षिणस्य च । तैरेव च पदैः कार्यं प्राङ्मुखेनापसर्पणम् ॥ १३०॥
There also, the piercing motion on the left side is paired with a sweeping movement on the right. Using those very same steps, one should retreat while facing east.
english translation
tatrApi vAmavedhastu vikSepo dakSiNasya ca । taireva ca padaiH kAryaM prAGmukhenApasarpaNam ॥ 130॥
hk transliteration by Sanscript