Hadhrat Abdullah ibn Abbas (radiyallahu anhu) reports that Nabi (sallallahu alaihi wasallam) said, “No action performed in any day is more virtuous than the deeds performed during these (ten days of Dhul-Hijjah).” The Sahabah asked, “Not even Jihaad?” Rasulullah (sallallahu alaihi wasallam) replied, “Not even Jihaad, except for that person who endangers his life and wealth and does not return with anything. (Saheeh Bukhari # 969)