Hadith #2526 (Sunan Abi Dawud)
Book: Jihad (Kitab Al-Jihad)
Narrator(s): Abdullah bin al-Dayli, Abdullah bin Wahb عبد الله بن وهب بن مسلم القرشي, Ahmed bin Salah al-Masri أحمد بن صالح المصري, Asim bin Hkym Abu عاصم بن حكيم أبو محمد بن أخت, Yahya bin Abi 'Amr يحيى بن أبي عمرو السيباني
Grade: Sahih

The Prophet (ﷺ) said: The warrior gets his reward, and the one who equips him gets his own reward and that of the warrior.

Source: https://parallelquran.com/hadith/sunan-abi-dawud-2526/