Just Two Rak'at

السلام عليكم

بِسْمِ اللهِ الرَّحْمنِ الرَّحِيمِ

Why we should try to do more the what is obligatory on us:

Rasulullah (صلى الله عليه وسلم) passed by a grave and asked:

Whose grave is this?

The Sahabah replied: Of so and so

Rasulullah (صلى الله عليه وسلم) said: For this man in the grave, the offering of two Rak'at is dearer than all your world and whatever it contains.

[Tabarani, Majma-'uz-Zawaid]

The true value of each deed will become apparent after death.