Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 9 · Vastu, Griha Pravesha
वास्तु गृहप्रवेशश्च
व्ययस्थानगताः शश्वद्बहुव्ययकरा ग्रहाः ।हंत्यर्थहीनाः कर्तारं मंत्रहीनास्तु ऋत्विजम् ॥ ५३७ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 537.
All planets in the 12th house always cause heavy spending. An installation done without wealth may put the doer's life at risk. One done without mantras may risk the priest's life.
Simple meaning: Planets in the 12th bring heavy spending. An installation without money or mantras may risk the doer's or priest's life.
श्रियं लक्षणहीनास्तु न प्रतिष्ठासमो रिपुः ।
A faulty installation is the worst enemy. Pick a rising sign with many good points and little fault.
सुराणां स्थापनं तत्र कर्तुरिष्टार्थसिद्धिदम् ।
Then installing gods brings the doer what he wants. Next come rules for building temples and houses.
क्षेत्रमादौ परीक्षेत गंधवर्णरसांशकैः ।
Test a plot first by the smell, colour and taste of its soil.