Intro 2 - Knowledge precedes speech and action. And 3 things all muslims should learn and practise
Ash-Shaafi’ee, may Allaah have mercy on him, said: “Had Allaah not sent down aproof to His creation other than this surah (chapter), it would have been sufficient for them.”Al-Bukhaaree, may Allaah have mercy on him, said: “Chapter: Knowledge comesbefore speech and action.”The proof for this is Allaah’s saying:
So know that there is no deity worthy of worship except Allaah, and seekforgiveness for your sins.”
[Surah Muhammad: 19] So He began by mentioningknowledge before speech and action.