Riyad us Saliheen: Hadith 1285

I asked the Messenger of Allah (ﷺ): "Which action is dearest to Allah?" He (ﷺ) replied, "Performing As-Salat (the prayer) at its earliest fixed time." I asked, "What is next (in goodness)?" He (ﷺ) said, "Kindness towards parents." I asked, "What is next (in goodness)?" He (ﷺ) said, "To participate in Jihad in the Cause of Allah."

[Al-Bukhari and Muslim].