It was narrated from Ibn 'Umar that:
The Prophet said: "Whoever seeks knowledge for a reason other than the sake of Allah, or intends it for a purpose other than for the sake of Allah, let him take his place in hell." (FR)
English reference (FR): Vol. 1, Book 1, Hadith 258 (FR)
Arabic reference (FR): Book 1, Hadith 269 (FR)