What is the evidence for stipulating knowledge in the Quran and the Prophetic Sunnah?

What is the evidence for stipulating knowledge in the Quran and the Prophetic Sunnah?

Views : 90

Allah said ( interpretation of the meaning ):

{ but only those who testify to the truth [can benefit], and they know. }

Quran ( 43:86 )

they witness that there is no deity worthy of worship except Allah, so that their hearts affirms the words uttered by their tongues.

 It is narrated on the authority of 'Uthman that the Messenger of Allah, may the peace and blessings of Allah be upon him, said. "He who died knowing (fully well) that there is no god worthy of worship but Allah will enter the Paradise."