سنن النسائي

It was narrated that Abdullah in 'Umar said: "The Messenger of Allah (ﷺ) said: 'There are two qualities which no Muslim person attains but he will enter Paradise, and they are easy, but those who do them are few.' The Messenger of Allah (ﷺ) said: 'The five daily prayers: After each prayer one of you glorifies Allah (SWT) ten times and praises Him ten times and magnifies him ten times, which makes one hundred and fifty on the tongue and one thousand five hundred in the balance.' And I saw the Messenger of Allah (ﷺ) counting them on his hands. 'And when one of you retires to his bed he says the tasbih thirty-three times and the tahmid thirty-three times and the takbir thirty-four times, that is one hundred on the tongue and one thousand in the balance.' The Messenger of Allah (ﷺ) said: "So which of you does two thousand five hundred bad deeds in a day and a night?" It was said: "O Messenger of Allah (ﷺ), how can a person not persist in doing that?" He said: "The Shaitan comes to one of you when he is praying and says: 'Remember such and such, remember such and such," or he comes to him when he is in bed and makes him fall asleep."