Zayd [narrated it] with some interruption in his chain of transmission.

And al-Walīd ibn Jamīl narrated this ḥadīth from al-Qāsim Abī ʿAbd al-Raḥmān, from Abī Umāmah, from the Prophet, peace be upon him.

1721 — Ziyād ibn Ayyūb narrated that to us, saying: Yazīd ibn Hārūn narrated to us, saying: al-Walīd ibn Jamīl informed us, from al-Qāsim Abī ʿAbd al-Raḥmān, from Abī Umāmah, who said: The Messenger of God, peace be upon him, said: "The most excellent of charitable gifts are the shade of a tent pitched in the path of God, and the gift of a servant in the path of God, or a stallion offered for breeding in the path of God."(1)

This is a good, rare, and sound ḥadīth, and it is more sound in my view than the ḥadīth of Muʿāwiyah ibn Ṣāliḥ.

Chapter 6: What has been reported concerning the one who equips a warrior

1722 — Abū Zakariyyā Yaḥyā ibn Durustā narrated to us, saying: Abū Ismāʿīl narrated to us, saying: Yaḥyā ibn Abī Kathīr narrated to us, from Abī Salamah, from Busr ibn Saʿīd, from Zayd ibn Khālid al-Juhanī, from the Messenger of God, peace be upon him, who said: "Whoever equips a warrior in the path of God has indeed gone forth to battle, and whoever looks after the family of a warrior in his absence has indeed gone forth to battle."

(1) Its chain of transmission is sound. Al-Ṭabarānī recorded it in "al-Kabīr" (7916), and Ibn ʿAdī in "al-Kāmil" 7/2543, and it is in "Musnad Aḥmad" (22321), except that Ibn ʿAdī said in his narration: "Whoever fasts a day in the path of God," instead of his saying: "the shade of a tent in the path of God."