What does ʿayna al-yaqīn add in contrast to ʿilma al-yaqīn?

Supplementary Practice 19: Comparative Rhetorical Analysis of Sūrat al-ʿAṣr and al-Takāthur

• That all previous certain knowledge is false
• The quality of direct sight and observation
• Changing the sentence into a command
• Removing the referent of -hā