Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 5 · Omens
शकुनानि
अवमूत्र्याग्रतो याति यस्य तस्य भयं भवेत् ।यस्यावमूत्र्य व्रजति शुभं देशं तथा द्रुमम् ॥ १९ ॥
In the full Agni Purana this is chapter 232, verse 19.
If it passes urine and goes ahead of someone, fear comes to him. Say it passes urine on a good spot, a tree,
Simple meaning: A dog passing urine and going ahead of someone brings fear. Urine on a good spot or tree helps.
मङ्गल्यं च तथा द्रव्यं तस्य स्यादर्थसिद्धये ।
A dog wetting a lucky thing helps a person's aim. Jackals are read like dogs.
भयाय स्वामिनो ज्ञेयमनिमित्तं रुतं गवाम् ।
A cow crying for no reason is a fear sign. At night it points to thieves. A strange cry points to death.
शिवाय स्वामिनो रात्रौ बलीवर्दो नदन्भवेत् ।
A bull bellowing at night is good for its owner. A freed bull gives the king victory.