"The two feet of the Son of Adam will not move from near his Lord on the Day of Judgement until he is asked about five (matters): about his life - how he spent it; about his youth - how he took care of it; about his wealth - how he earned it and where he spent it; and about that which he acted upon from the knowledge he acquired"

(al-Tirmidhi) [src: p9, The Broken Chain (Ltd Edition), Aftab Ahmad Malik]

A man said to the Prophet (peace be upon him): By Allah, O Messenger of Allah, I do love you. The Prophet (peace be upon him) said: Look, what you are saying? The man said: By Allah, I love you, and repeated this sentence thrice. The Prophet (peace be upon him) said: If you really love me, then be prepared for acute poverty, for extreme hardship rushes more rapidly towards a person who loves me, than a flood flows towards its goal. "

(Narrated Abdullah ibn Mughaffal - al-Tirmidhi) [src: alim.org]