Al-An'am 6:116

Wa-in tutiAA akthara man fee al-ardiyudillooka AAan sabeeli Allahi in yattabiAAoona illaaththanna wa-in hum illa yakhrusoon

And if you obey most of those upon the earth, they will mislead you from the way of Allāh. They follow not except assumption, and they are not but misjudging.

If you obey the majority of those on earth, they will make you lose the way of Allah. They follow nothing but whims, and they do nothing but make conjectures.