Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 5 · Omens
शकुनानि
महिष्यादिषु चाप्येतत्सर्वं वाच्यं विजानता ।आरोहणं तथाऽन्येन सपर्याणस्य वाजिनः ॥ २५ ॥
In the full Agni Purana this is chapter 232, verse 25.
All this should be said, by one who knows, for buffaloes and the like too. Likewise, someone else mounting the saddled horse is not wanted.
Simple meaning: All this holds for buffaloes too. Someone else riding one's saddled horse is not good.
जलोपवेशनं नेष्टं भूमौ च परिवर्तनम् ।
A horse sitting in water, rolling on the ground or sleeping for no reason brings trouble.
यवमोदकयोर्द्वेषस्त्वकस्माच्च न शस्यते ।
A horse suddenly refusing barley and sweets, bleeding from the mouth, or trembling is a bad sign.
क्रीडन्वकैः कपोतैश्च सारिकाभिर्मृतिं वदेत् ।
A horse playing with herons, pigeons or mynas points to death. Tears and foot-licking point to ruin.