Hadiths

If you want to change, if you want to repent, if you want Allah to forgive your sins, if you want paradise. Hasten. Hasten to fasting, Hasten to night prayer, Hasten to Allah's mercy, Hasten to Allah's generosity.
We say 'tomorrow I will repent.' 'I will.' "But tomorrow."

Allah said in the glorious Qur'an:
And do not follow the footsteps of shaitan [2:169]
When Satan enters the hellfire he will speak to the people there. He will speak to the guys, girls, women, men that fell into his trap. He will speak to them. He will say:

And Satan will say when the matter is concluded, 'Indeed Allah has promised you the promise of Truth. And I promised you, but I Betrayed you. But I had no authority over you except! Except that I invited you, And you RESPONDED to me. So do not blame me, But blame yourselves. I cannot be called to your aid, nor can you be called to my aid. Indeed I deny your association of me (with Allah) before.