Reference: al-Jaami' lil-Khateeb v2 p250. al-Hifth - Ahammiyyatuhu, 'Ajaa.ibuhu, Tareeqatuhu, Asbaabuhu p8
said:
Any knowledge which cannot accompany its possessor to the toilet is not considered knowledge.
Translator's note: This statement indicates only that which is memorised is considered knowledge.
