Jami` at-Tirmidhi 1694

Narrated 'Urwah Al-Bariqi: That the Messenger of Allah (ﷺ) said: "Goodness will remain in the forelocks of horses until the Day of Judgement: (They bring about) Rewards and spoils of war." [Abu 'Eisa said:] There are narrations on this topic from Ibn 'Umar, Abu Sa'eed, Jarir, Abu Hurairah, Asma' bin Yazid, Al-Mughira bin Shu'bah, and Jabir. [Abu 'Eisa said:] This Hadith is Hasan Sahih. 'Urwah is Ibn Al-Ja'd Al-Bariqi, and they say he is 'Urwah bin Al-Ja'd. Ahmad bin Hanbal said: "The Fiqh of this Hadith is that Jihad is with every Imam until the Day of Judgement