That the Prophet (ﷺ) said: "Going out in the morning in the cause of Allah, or in the afternoon, is better than the world and what is in it."

This Hadith is Hasan Gharib.

The Abu Hazim who reported from Ashl bin Sa'd is Abu Hazim Az-Zahid. He is from Al-Madinah, and his name is Salamah bin Dinar. While Abu Hazim who reported from Abu Hurairah is Abu Hazim Al-Ashja'i Al-Kufi, whose name is Salman, and he is the freed slave of 'Azzah Al-Ashja'iyyah.
Jami` at-Tirmidhi Book 22, Hadith 32