Once Prophet Mohammad(SAW) was sitting with his companions. He asked them, "Is there any one amongst you who prays the whole night daily, who keeps thirty fasts every month and who completes recitation of one whole Quran daily"?
There were many pious men amongst the companions but none of them were doing so much Ibadat, so they all kept quiet.
Suddenly Hazrat Salman Farsi(AS) got up and said, "I do all these Ibadats".
Some of the companions looked unbelievingly at him and said,"Ya Rasoolallah(SAW) we have seen Salman(AS) sleeping some part of the night, we have seen him eating during the day and we have seen him busy with other works so it is not possible for him to recite a whole Quran daily". The Prophet(SAW) smiled and told Hazrat Salman (AS) to explain his claim.
Hazrat Salman(AS) said, "you have told us who ever goes to bed with wudu is as if the whole night he has spent in Ibadat, I keep three fasts every month and Quran says that every good deed gets ten rewards, so that becomes thirty fasts, reciting Surah Ikhlas once is equal to one-third of Quran, I recite it thrice daily."
Taken from: IslamTalk Mailing List