The Importance and Sunnah of The First 10 Days of Dhul Hijjah
Ibn ‘Abbaas (RA) reported that the Prophet (PBUH) said: “There are no days in which righteous deeds are more beloved to Allah than these 10 days.”
The people asked, “Not even jihad for the sake of Allah?”
He said, “Not even jihad for the sake of Allah, except in the case of a man who went out to fight giving himself and his wealth up for the cause and came back with nothing.” - Bukhaari, 2/457