(Ashoora) 42 : 52
وَكَذَٰلِكَ أَوْحَيْنَا إِلَيْكَ رُوحًا مِنْ أَمْرِنَا ۚ مَا كُنْتَ تَدْرِي مَا الْكِتَابُ وَلَا الْإِيمَانُ وَلَٰكِنْ جَعَلْنَاهُ نُورًا نَهْدِي بِهِ مَنْ نَشَاءُ مِنْ عِبَادِنَا ۚ وَإِنَّكَ لَتَهْدِي إِلَىٰ صِرَاطٍ مُسْتَقِيمٍ

And just like that, We have inspired in you a Spirit from Our Command, you did not know what the Book is, and did not know what the belief is, but We made It as a Light with which We guide from Our servants whom We intend, and indeed you are guiding them into the Straightpath.

What is meant by Spirit, Command, Light, etc., is Adhikr-the Straightpath as explained in verse 1: 5. Since it is told ‘with which We guide from Our servants whom We intend’, none will be guided without utilizing Adhikr, which is the Permission of the Lord to become a believer. Since the Messenger was calling mankind to Allah and to His single party as mentioned in verse 58: 22 with Adhikr, which is the Wise Reminder mentioned in verse 3: 58, the believer should also do so. And Fujjar, who are calling mankind to different organizations of Fujjar, are calling to the different parties of Satan as mentioned in verse 58: 19, and they are all true disbelievers as told in verses 4: 150-151, and Mushriks as told in verses 30: 30-32. Since Adhikr is codified as a Book today, whoever holdfasts It, he did holdfast the Lord and is guided into the Straightpath as explained in verses 3:101; 4: 174-175 and 5: 48. Since there is no any group of believers anywhere in the world, the odd believer should follow the mode of prayer and life style explained in verses 7: 205-206. See explanation 12: 208; 16: 2, 125, and 39: 23.