al-Sharif al-Radi (d. 406 AH) · Thaqalayn library edition, reproduced verbatim
وَإِنِ اسْتَطَعْتُمْ أَنْ يَشْتَدَّ خَوْفُكُمْ مِنَ اللهِ، وَأَنْ يَحْسُنَ ظَنُّكُمْ بِهِ، فَاجْمَعُوا بيْنَهُمَا، فَإِنَّ الْعَبْدَ إِنَّمَا يَكُونُ حُسْنُ ظَنِّهِ بِرَبِّهِ عَلَى قَدْرِ خَوْفِهِ مِنْ رَبِّهِ، وَإِنَّ أَحْسَنَ النَّاسِ ظَنّاً بِاللهِ أَشَدُّهُمْ خَوْفاً لِلَّهِ.
If it is possible for you to have severe fear of Allāh and to rest hope in Him, then do both these things because every individual can have hope in His Lord to the extent of his fear of His Lord. Certainly, the most hopeful person with Allāh is he who fears Him most.
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