Narrated Hasan: Knowledge is of two types. Firstly, knowledge perceived by the heart, and that is useful knowledge; secondly, the knowledge at on the tip of one’s tongue, and that is an argument from Allah, the Exalted and Glorious, against the children of Adam.
Transmitted by Darimi. (Tirmidhi Hadith 270)
Transmitted by Darimi. (Tirmidhi Hadith 270)