Abbas - Tanwîr al-Miqbâs min Tafsîr Ibn ‘Abbâs
(Hast thou not known) O Muhammad (that Allah knoweth all that is in the heaven) all the good things performed by the dwellers of the heavens (and the earth) and He knows all the good and evil things committed by the dwellers of the earth? (Lo! it is in a Record) it is recorded in the Guarded Tablet. (Lo! That) preserving that without a record (is easy for Allah).
Do you not know (the interrogative here is meant as an affirmative) that God knows all that is in the heaven and the earth? Truly that, which has been mentioned, is [recorded] in a Book, namely, the Preserved Tablet (al-lawh al-mahfūz). Indeed that, namely, the knowledge of what has been mentioned, is easy for God.
Allah tells us how perfect is His knowledge of His creation, and that He encompasses all that is in the heavens and on earth
Not even the weight of a speck of dust, or less than that or greater escapes His knowledge in the heavens or in the earth. He knows all things even before they happen, and He has written that in His Book, Al-Lawh Al-Mahfuz, as was reported in Sahih Muslim from `Abdullah bin `Amr, who said, "The Messenger of Allah said:
(Allah issued His decrees concerning the measurement and due proportion of the creatures fifty thousand years before He created the heavens and the earth, and His Throne was over the water.) In the Sunan, it was reported from a group of the Companions that the Messenger of Allah said:
(The first thing that Allah created was the Pen. He said to it, "Write!'' It said, "What should I write'' He said, "Write what will happen,'' so the Pen wrote everything that will happen until the Day of Resurrection.) Allah says:
(Verily, it is (all) in the Book. Verily, that is easy for Allah.)
Maududi - Sayyid Abul Ala Maududi - Tafhim al-Qur'an
That is, "The Community of every Prophet".
Here the Arabic word mansak has been used in its most comprehensive sense which also includes "sacrifice" (v. 34). It means service, worship, in short, "the whole way of life". The same theme has been expressed in V: 48: "We prescribed a law and a way of life for each of you".
That is, "Now you have brought a way of life just as the former Prophets brought "ways of life" for their people. Therefore the people have no right to dispute with you concerning the "Law" you have brought".
This confirms the explanation given in E.N. 117 above.
In order to understand the significance of this paragraph, we should keep in view vv. 55- 57 with which this is connected.