Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 9 · Vastu, Griha Pravesha
वास्तु गृहप्रवेशश्च
द्वादशांगुलकं शंकुं स्थाप्येक्षेत्तत्र दिक्क्रमम् ।चतुरस्रीकृते क्षेत्रे षड्वर्गपरिशोधिते ॥ ५४६ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 546.
Set up a shanku (gnomon) of twelve angulas (finger-widths) there. Mark the directions from it in order. Make the plot square, cleared by the six-part check.
Simple meaning: Set a 12-finger stick in the circle to find directions. Make the plot square.
रेखामार्गे च कर्त्तव्यं प्राकारं सुमनोहरम् ।
Build a fine wall along the marked line. Each of the four sides gets door places.
अष्टावष्टौ प्रतिदिशं द्वाराणि स्युर्यथाक्रमम् ।
Each side has eight doors. The results of each door follow.
हानिर्नैःस्व्यं धनप्राप्तिर्नृपपूजा महद्धनम् ।
The eight east doors bring loss, wealth, honour, theft, anger or fear, in order.