Not graded
Hisn al-Muslim (Fortress of the Muslim) 102
((بِاسْمِكَ رَبِّي وَضَعْتُ جَنْبِي، وَبِكَ أَرْفَعُهُ، فَإِن أَمْسَكْتَ نَفْسِي فارْحَمْهَا، وَإِنْ أَرْسَلْتَهَا فَاحْفَظْهَا، بِمَا تَحْفَظُ بِهِ عِبَادَكَ الصَّالِحِينَ)).
(In Your name my Lord, I lie down and in Your name I rise, so if You should take my soul then have mercy upon it, and if You should return my soul then protect it in the manner You do so with Your righteous servants.)
Cited in Hisn al-Muslim (Fortress of the Muslim) (No. 102).