Nabi (Sallallahu Alayhi Wasallam ) said:"Zikr causes houses to be built in Jannat by the angels .When zikr is stopped , the angels also stop construction of his houses.When asked why a particular construction was stopped by the angels ,they reply:`The construction had to be stopped because funds for it were stopped`.
(Fazaail Zikr ,Chapter 1,Hadith no. 64)
Nabi (Sallallahu Alayhi Wasallam )said:"Is there nobody amongst you who may be able to do daily, good deeds equal to the
The Sahaba (Radiyallahu Anhum ) said :"O Rasulullah !who has the strength to do so ?"Nabi sallallahu alayhi wasallam said :"Everybody has the strength to do so."The Sahaba (radiyallahu Anhum ) enquired how is it possible ?"Nabi (sallallahu Alayhi Wasallam) explaied :The reward of reciting "Subhaanallah "is greater than Uhud,That of "Laa ilaaha illallah " is greather then Uhud and that of "Allahu Akbar " is greater than Uhud ." (Kabir )
Nabi (Sallallahu Alayhi Wasallam ) said :
"Recite "Subhanallah "one hundred times (x100) and you will attain a reward as if you have set free one hundred Arab Slaves;recite "Alhamdulillah " one hundred times(x100), which will give u a reward of presenting a hundred horses,fully equipped ,for Jihad;recite 'Allahu Akbar 'One hundred times(x100), which will reward you as if you sacrificied a hundred camels for the sake of Allah and recite 'Laa ilaaha illallah" one hundred times(x100),the reward of which will fill the whole space between the earth and sky .There is no other commendable action that can surpass it ."
(Ahmed - Nasai)