From Sahih Bukhari (Hadith 7534):
Narrated Ibn Mas`ud:A man asked the Prophet (ﷺ) "What deeds are the best?" The Prophet (ﷺ) 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
Reference: Bukhari 7534