Taqlīd is an obligation based on intellect. Muslims are required to implement the laws of the Islamic religion, and they cannot be known in details and in a correct way except by referring to the people of expertise, who are the religious scholars, and relying on them in their findings that they concluded by research and study.
The proof of this concept from the Holy Quran is when Almighty Allah said: “And the believers should not all go out to fight. Of every troop of them, a party only should go forth, that they (who are left behind) may gain sound knowledge in religion, and that they may warn their folk when they return to them, so that they may beware.â€(Quran, 122:9).