Narada Purana (Jyotisha Selections) · by Vyasa
Chapter 5 · Portents, Comets
ग्रहचारः केतवश्च
अवृष्टिशस्त्रभयदः पीड्यं देवा नृपांतकृत् ।पितृद्विदैवधातॄणां भिद्यंते गंडतारकाः ॥ ३५ ॥
In the full Narada Purana (Purva Bhaga) this is chapter 56, verse 35.
... may bring no rain, fear of weapons, and a risk to the king's life. When the stars of Magha, Vishakha and Rohini are split by Mars ... (Our text is unclear here: a phrase about the gods, and the word before 'stars', do not parse.)
Simple meaning: Mars turning back in Magha may bring drought, weapon fear and danger to the king.
दुर्भिक्षं मरणं रोगं करोति क्षितिजस्तदा ।
Mars piercing those stars can bring famine, danger to life and illness.
अवृष्टिदश्चरन्भौमो दक्षिणेरोहिणीस्थितः ।
Mars moving in those stars brings no rain. Mars north of the stars brings good.
याम्यगोऽनिष्टफलदो भवेद्भेदकरो नृणाम् ।
Mars going south gives bad results. Mercury never rises without some strange omen.