Daivajna Vallabha · Attributed to Varahamihira
Chapter 4 · Going and Coming: General Rules
सामान्यगमाऽऽगमाध्यायः
चन्द्रतोऽथ् यदि वा विलग्नतो द्वादशद्वितयराशिगामिनः ।शुक्रवाक्पतिशशान्कनन्दनाः का गमाऽऽगमकथाऽस्ति पृच्छतः ॥ ७ ॥
From the Moon or from the rising sign, Venus, Jupiter and Mercury may be in the 12th and 2nd signs. Then what talk can there be of going or coming for the asker? There will be neither.
Simple meaning: Venus, Jupiter and Mercury in the 12th and 2nd from the Moon or rising sign: no going, no coming.
बलेन सर्वोत्तमतामुपागतो ग्रहो गृहे यावति लग्नतो भवेत् ।
The strongest planet's house number from the rising sign gives the months before the traveller returns.
चरांशकस्थे किल काल एष स्थिरांशके तद्विगुणस्तु वाच्यः ।
Moving sign's navamsha: that time. Fixed: twice the time. Dual: three times the time.
यातुः पृच्छालग्नतः सप्तमस्य स्वामी यायाद्यावता वक्रभावम् ।
The traveller returns when the lord of the 7th house from the question's rising sign starts moving backward.