Musannaf Ibn Abi Shaybah 35401 — Non-Arab horses: what do they get

It is narrated from Amr bin Maymun that Ju'unah bin al-Harith, who was in charge of the frontier post of Malatya, wrote to Umar bin Abd al-Aziz (may Allah have mercy on him): "Some men go on campaign with weak horses, jadha' or thani in age, which provide no defence for the Muslims; and a man goes on campaign with a strong Turkish-bred (birdhawn) horse which is in no way inferior to the Arab horse, except that it is called a birdhawn. O Commander of the Faithful, what is your view on this?" Umar bin Abd al-Aziz (may Allah have mercy on him) wrote back: "As for those weak horses which provide no defence for the Muslims, inform their owners that you will not assign them a share, whether they take them along or leave them behind. And as for those Turkish-bred horses which are excellent in running and appearance, give them the same share as you give to Arab-bred horses."