Bismillah (In the name of Allah)
AsalamuAlaykum Warahmatullahi Wabarakatuh/
Peace be upon those who follow guidance.
Shaytan said: “ ‘O my Lord! Because You have put me in the wrong, I will make (wrong) fair-seeming to them on the earth, and I will put them al in the wrong – except Your servants among them, sincere and purified (by Your no authority shall you have, except such as put themselves in the wrong and follow you. ‘ “(al-Hijr 15:42)
The Prophet said, "Allah likes sneezing and dislikes yawning, so if someone sneezes and then praises Allah, then it is obligatory on every Muslim who heard him, to say: May Allah be merciful to you (Yar-hamuka-l-lah). But as regards yawning, it is from Satan, so one must try one's best to stop it, if one says 'Ha' when yawning, Satan will laugh at him." (Bukhari)
The Prophet (PBUH) said: “The heart will be subjected to trial after trial, and there will appear a black stain on any heart that is affected. The stain will spread until the heart is completely black and sealed, to the point that it will not recognize any good deeds or denounce any evil, except whatever suits its own desires” (Sahih Muslim)
The Prophet told his close companion: “By Allah! Whoever gives up something for the sake of Allah, Allah will replace it with something better than it!”