(Ambiya') 21 : 7
وَمَا أَرْسَلْنَا قَبْلَكَ إِلَّا رِجَالًا نُوحِي إِلَيْهِمْ ۖ فَاسْأَلُوا أَهْلَ الذِّكْرِ إِنْ كُنْتُمْ لَا تَعْلَمُونَ
And We have not sent Messengers before you except men; then if you are not knowing anything, you ask the person who knows Adhikr.
Today, Adhikr-the Best Interpretation of Lord’s Book as told in verse 25: 33-is codified through the Three-Time-Knower mentioned in verse 25: 59. So any person having any doubt in any matter should ask the author of Adhikr as explained in verses 16: 43-44. See explanation 10: 94; 16: 2 and 89.