One day the Prophet (sallallaahu 'alaihi wa sallam) told friends: "Did he tell them what is best from your works, that is clean and has the greatest rewards, which is better than gold or silver to give charity, that is better than to fight with the enemies in the cause of God? "Companions said:" what is it criminal, O Messenger of Allah? "He said:" Remembrance of Allah. "Says Allah in the Qur'an: "you remind me (to worship) was` t remember (Him), more grateful, and do not deny. "(Baqarah 152)


{Specify; Hakim, Nawawi and Albani}