The harms of worshiping Allah not based on knowledge

‘Umar bin ‘Abdil-Azeez 151 AH (may Allah have mercy on him) said, من عبد الله بغير علم كان ما يفسد أكثر مما يصلح “Whoever worships Allah without knowledge corrupts more than he rectifies.” Source: Ibn Abi Shaybah in “Al-Musannaf” 3098, ad-Daarimi in his “Sunan” 313, and Ibn Battah in “al-Ibaanah” 579.

Whose opinion/view should we follow?

‘Umar bin ‘Abdil-Azeez 151 AH (may Allah have mercy on him) said, خذوا من الرأي ما يوافق من كان قبلكم فانهم كانوا أعلم منكم Take the view that agrees with those whom have preceded you. For truly they were more knowledgeable than you. Taken from: Fadl ilm Salaf ala ilm Khalaf by ibn Rajab p.…