(An-Naml) 27 : 92
وَأَنْ أَتْلُوَ الْقُرْآنَ ۖ فَمَنِ اهْتَدَىٰ فَإِنَّمَا يَهْتَدِي لِنَفْسِهِ ۖ وَمَنْ ضَلَّ فَقُلْ إِنَّمَا أَنَا مِنَ الْمُنْذِرِينَ
And to explain this Reading, and whoever is guided is only guided for his soul; and whoever strays, you say: "I am only one of the warners".
Lord’s Book was not codified during Messenger’s lifetime, it was primarily codified during the caliphate of Caliph Abu Backer. Adhikr sent down to Messenger Muhammad contains all 312 previous Books and their upright Explanations as explained in verse 16: 44. Today the Best Interpretation of Lord’s Book Adhikr is codified through the Three-Time-Knower mentioned in verse 25: 59. As there is no group of believers anywhere in the world, the odd believer should follow the lifestyle and mode of prayer as explained in verses 7: 205-206. See explanation 7: 178; 10: 108 and 16: 37.