Ibn Mas'ud (May Allah be pleased with him) reported:
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].
App reference: Book 12, Hadith 2
Arabic/English book reference: Book 12, Hadith 1286