(Jasiya ) 45 : 30
فَأَمَّا الَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ فَيُدْخِلُهُمْ رَبُّهُمْ فِي رَحْمَتِهِ ۚ ذَٰلِكَ هُوَ الْفَوْزُ الْمُبِينُ
Then those who believed, and do righteous deeds, then their Lord will admit them in His Mercy, that is the manifest triumph.
The best deed is to propagate Adhikr-the Permission of Allah to become believer as explained in verse 10: 100-to entire mankind. Mercy is one of the 40 names of Adhikr. So, for the believer who utilizes Adhikr as the Shield and Safeguard against all calamities, disasters, diseases and hellfire, and utlizes It as the Ticket to return to the Paradise, and convey It to other people for utilizing so, Adhikr will argue and witness in favour of him, and will intercede for him and make him intercede for others. See explanation 35: 32; 43: 86; and 45: 13.