a tree will be planted for you in Paradise

Sayyiduna Abu Hurairah (RadhiAllaho anho) narrates

that Rasulullah (Sallallahu Alaihi Wasallam)

passed by me and I was planting a sapling.

He (sallal laahu alaihi wasallam) asked

O Abu Hurairah !

What are you planting ?

I replied:

Saplings for myself.

He (sallal laahu alaihi wasallam) said:

Shall I not tell you of better saplings than these?

I said: yes O Rasulallah!

(sallal laahu alaihi wasallam)

He (sallal laahu alaihi wasallam) said:

Say,

Subhanallah

(Glory be to Allah Who is above all faults)

Alhamdulillah

(Praise be to Allah)

La ilaha illallah

(There is none worthy of worship except Allah)

Allahuakbar

( Allah is the Greatest ) 

for each one of these words

a tree will be planted for you in Paradise.

{ Ibne- Majah }