"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]
Narrated by Ubayy ibn Ka'b (Radi Allah Ta'lah Anhu): "I said: Allah's Messenger (Sal-allahu-aleihi-wasallam), I invoke blessings upon you very frequently. How much of my supplication should I devote to you. He said: As much as you like. I said: May it be a quarter? He said: As much as you like, but if you increase it, it will be good for you. I said: May it be a half? He said: As much as you like, but if you increase it, it will be good for you. I said: May it be two thirds? He said: As much as you like but if you make an increase in it, it will be better. I said: May I devote the whole of my supplication to you (that I make in my prayer)? Thereupon he said: In that case it will take care of you and your sins would be expiated."
Tirmidhi transmitted it. Hadith No. 929 of Mishkat al-Masabih. [src: road-to-heaven.com]
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