He is the AL-Alim Who knows all in all; the unseen and - Surah At-Taghabun ayat 18 in Tafsir

﴿عَٰلِمُ ٱلۡغَيۡبِ وَٱلشَّهَٰدَةِ ٱلۡعَزِيزُ ٱلۡحَكِيمُ ﴾
[التغَابُن: 18]

He is the AL-Alim Who knows all in all; the unseen and the hidden, the spoken words, whispered under the breath or suggested secretly to the mind, and what the breasts store of thoughts and feelings and what they forge. He equally knows the loudly spoken words and all that is being said or openly done, and He is AL-Aziz (the Almighty) and AL-Hakim (the wise)

﴿عالم الغيب والشهادة العزيز الحكيم﴾ [التغَابُن: 18]

Dr Kamal Omar
All-Knower of the unseen and the seen, the All-Mighty, the All-Wise

Dr Laleh Bakhtiar
One Who Knows the unseen and the visible, The Almighty, The Wise

Dr Munir Munshey
(He is) the Knower of the unseen and the manifest, the Almighty, the Wisest

Edward Henry Palmer
He knows the unseen and the visible; the mighty, the wise

Farook Malik
He has the knowledge of the unseen and the seen, He is the All-Mighty, the All-Wise

George Sale
knowing both what is hidden, and what is divulged; the mighty, the wise

Maududi
He knows that which is beyond the ken of perception as well as that which can be perceived. He is the Most Mighty, the Most Wise