question #1 Sahih Muslim 85b, Book 1, Hadith 159 : What is considered the most important deed that brings one closer to Paradise?

I said: Messenger of Allah, which of the deeds (takes one) nearer to Paradise? He (the Holy Prophet) replied: Prayer at its proper time, I said: What next, Messenger of Allah? He replied: Kindness to the parents. I said: What next? He replied: Jihad in the cause of Allah.