Sahih Bukhari Volume 9, Book 93, Hadith Number 625.

Narrated By Ibn Mas’ud : A man asked the Prophet “What deeds are the best?” The Prophet said:
  1. To perform the (daily compulsory) prayers at their (early) stated fixed times,
  2. To be good and dutiful to one’s own parents.
  3. And to participate in Jihad in Allah’s Cause.”