The Most Loved Deeds by Allah
Abdullah bin Mas’ud (radi Allahu anhu) reported: I asked the Prophet (sal Allahu alaihi wa sallam), “Which of the deeds is loved most by Allah?” The Messenger of Allah (sal Allahu alaihi wa sallam) said, “Salat at its proper time” I asked, ”what next?” He (sal Allahu alaihi wa sallam) replied, ”Kindness to parents” I asked, ”what next?” He replied, ”Jihad in the way of Allah”
[Sahih al-Bukhari and Muslim]
Performance of Salat at the stated time means its performance in earliest prescribed or at least its regularity. One should not give preference to mundane affairs over it. Salat and Jihad are the two most meritorious duties of a Muslim. When nice treatment to parents is mentioned along with Salat and Jihad, it gives further importance to this injunction.
And Allah Knows Best!