Reported by `Abdullah bin Mas`ud (RA): I asked the Prophet (peace be upon him) , "Which of the deeds is loved most by Allah?'' Messenger of Allah (peace be upon him) said, "Salat at its proper time.'' I asked, ``What next?'' He (peace be upon him) replied, ``Kindness to parents.'' I asked, ``What next?'' He replied, ``Jihad in the way of Allah.''
[Bukhari & Muslim].