The Messenger of Allah (PBUH&HF) said:
“Almighty God has endowed upon mankind nothing better than reason (wisdom). Sleep of a wise man is better than the waking hours of an ignorant. Rest of a wise man is better than the movement (journeys for Hajj or Jihad) of ignorant. God has not send any prophet or messenger without first perfecting his reason; and his reason stands superior to all the reasons of (the people of) his community. What the Prophet has wished is preferable to all the Ijtihad (striving) of the Mujtahideen (those who strive).
No creature can ever discharge his obligations to God unless he comprehends those (obligations). All the worshippers weighted together can not reach the height of excellence of a wise man. The man of reason who are the possessors of understanding minds about whom Allah said:
يُؤتِي الْحِكْمَةَ مَن يَشَاء وَمَن يُؤْتَ الْحِكْمَةَ فَقَدْ أُوتِيَ خَيْرًا كَثِيراً وَمَا يَذَّكَّرُ إِلاَّ أُوْلُواْ الأَلْبَابِ
‘He giveth wisdom unto whom He will and he unto whom wisdom is given, he truly hath received abundant good. But non will grasp the Message except men of understanding. [2:269]’ 
 Usul al-Kafi, Arabic-English version, part 1, pp 30-31, Tradition #11