How is it possible for one’s heart to be certain that one is going to meet Allah, that Allah sees and hears all that he does, and knows his secret open affairs, and that he will be made to stand before Allah, answerable for all his deeds - how can one be certain and aware of all of this, and yet persist upon things which displease Allah; persist upon abandoning Allah’s orders, neglecting His rights, and yet claim that he has good expectation of Allah?

The heart will rest and feel relief if it is settled with Allah. And it will worry and feel anxious if it is settled with the people.

There are no means of attaining faith and certainty except through the Qur'an.

As long as you are performing prayer, you are knocking at the door of Allah, and whoever is knocking at the door of Allah, Allah will open it for him.

A true believer does not fear physical death, rather he fears the death of his heart

Happiness is attained by three things: being patient when tested, being thankful when receiving a blessing, and being repentant upon sinning.

Sins have many side-effects. One of them is that they steal knowledge from you.