Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 10 · Yatra and Omens
यात्रा शकुनाश्च
षष्ठः पञ्चमगश्चन्द्रो वायव्यां च ललाटगः ।चतुर्थस्थानगः सौम्यश्चोत्तरस्यां ललाटगः ॥ ६३१ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 631.
The Moon in the 6th or 5th is on the forehead for the north-west. Mercury in the 4th is on the forehead for the north.
Simple meaning: The Moon in the 6th or 5th spoils the north-west. Mercury in the 4th spoils the north.
द्वित्रिस्थानगतो जीव ईशान्यां वै ललाटगः ।
Jupiter in the 2nd or 3rd spoils the north-east. For safety, do not go that way.
विलोमगो ग्रहो यस्य यात्रालग्नोपगो यदि ।
A planet moving backward in the rising sign of the journey can break the journey.
रवींद्वयनयोर्यातमनुकूलं शुभप्रदम् ।
Travel when the Sun's and Moon's courses suit the direction. If not, use day or night, or life may be at risk.