إِذَا كَانَتِ الْخَيْلُ سَائِمَةً، ذُكُورًا وَإِنَاثًا، وَحَالَ عَلَيْهَا الْحَوْلُ
Translation: When horses are grazing livestock, comprising males and females, and a year has passed over them.
The text specifies three distinct aspects: grazing, the presence of both sexes, and completion of a lunar year.