What happens to the Knowledge Acquired By a Person If It Is Not Acted Upon?!- [A Brief Reminder By Shaikh Uthaymeen (rahimahullaah)}
In The Name of Allaah, The Most Merciful, The Bestower of Mercy
If a person does not act on the knowledge [he has acquired], it will come to nothing. He will be deprived of blessing [in that knowledge] and will forget it, because Allaah [The Most High] said:
So because of their breach of their covenant, We cursed them, and made their hearts grow hard. They change the words from their (right) places and have abandoned a good part of the Message that was sent to them.
[Surah Al-Maa’idah’ Aayah 13]
As for those who accept guidance, He increases their guidance, and bestows on them their piety.
[Surah Muhammad’ Aayah 17]