Musnad Ahmad 7:6

Yazid ibn Harun narrated to us, Sulayman—meaning al-Taymi—informed us, from Abu Uthman, from Abdullah ibn Amir, from al-Zubayr ibn al-Awwam, that a man charged on a horse that was called Ghamrah—or Ghamra'—and he said: "He found a horse—or a foal—being sold, and it was attributed to that horse, so he was forbidden from it."