Agni Purana (Jyotisha Selections) · by Vyasa
Chapter 5 · Omens
शकुनानि
वामपादेन च तथा विलिखंश्च वसुंधराम् ।स्वपेद्वा वामपार्श्वेन दिवा वा न शुभप्रदः ॥ २९ ॥
In the full Agni Purana this is chapter 232, verse 29.
Scratching the earth with the left foot, or sleeping on the left side, or by day, does not give good.
Simple meaning: A horse scratching the ground with its left foot, sleeping on its left side or by day, is not good.
भयाय स्यात्सकृन्मूत्री तथा निद्राविलाननः ।
A horse passing urine once or looking sleepy brings fear. Refusing to be mounted is also bad.
यात्राविघातमाचष्टे वामपार्श्वं तथा स्पृशन् ।
A horse refusing a rider or touching its left side spoils the trip. Neighing at the enemy brings victory.
ग्रामे व्रजति नागश्चेन्मैथुनं देशहा भवेत् ।
An elephant mating in a village harms the land. A mother or rutting elephant points to the king's end.