Laziness is from Shaytaan
The Messenger of Allah (sal Allahu alaihi wa sallam) said: “When one of you wakes up from his sleep and does wudoo, then let him rinse his nose three times, for the Shaytaan spends the night on his nose.” [Bukhaari]
This hadith mentions one of the means by which the Shaytaan makes a person lazy. So when we wake up from sleep we should take Allah’s name and perform full wudoo, which includes the rinsing of the nose.
Another way in which the Shaytaan makes a person lazy in doing good deeds is by means of waswasah (insinuating whispers). How he does this is by making him feel that he has plenty of time and so the person becomes lazy and procrastinates.
Imaam Ibn al-Jawzi said concerning this: “How many Christians and Jews felt inclined towards Islam, but the Shaytaan kept discouraging them by saying, ‘Don’t rush into it, think about it.’ So he made them delay entering Islam until they died in a state of Kufr. Similarly, he makes the sinner put off repenting, and he keeps him indulging in his desires, telling him that one day he can repent…. He keeps on making people like to be lazy, or put off doing good deeds, and he deceives them by telling them that they have plenty of time and a lot of hope.
“So, the one who wants to do some good deed should carry out his actions with determination and resolve. Resolve means to not waste time and not delay things. He should forget about having plenty of time, because the one who has been warned (of the punishment of Allah) should not feel secure. What you miss, you cannot make up for. The reason for every shortcoming or inclination towards evil is the belief that there is plenty of time and a lot of hope, because man keeps thinking of giving up evil and turning towards good, but he procrastinates. No doubt whoever thinks that he has the whole day ahead of him will take his time, and whoever has the hope that he will still be there in the morning will do very little during the night, but the one who thinks of death as imminent will strive hard.” [Talbees Iblees]