Abdullah bin Dinar عبد الله بن دينار العدوي · The Book on Military Expeditions

That the Messenger of Allah (ﷺ) said: "The best companions are four, the best Saraya (military unit) is four hundred, the best army is four thousand, and twelve thousand will not be beaten due to being too few." This Hadith is Hasan Gharib, it was not narrated with a chain by anyone important besides Jarir bin Hazim, and this Hadith was only reported from Az-Zuhri, from the Prophet (ﷺ) in Mursal form. Hibban bin 'Ali Al-'Anazi reported it from 'Uqail,…

That the Messenger of Allah (ﷺ) said: "Whoever kills someone in battle, having a proof for that, then his goods are his." There is a story with this Hadith.