Which case, and why?

Praise be to God, the Mighty, the Mightiest; the Eternal, the Most Ancient; the Knowing, the Most Knowing; the Wise, the Wisest; the Merciful, the Most Merciful; the Generous, the Most Generous; the Forbearing, the Most Forbearing, 'who taught by the pen, taught man what he did not know' (Q 96:4–5), 'and God's bounty toward you has been great' (Q 4:113). I praise Him for the abundance of His blessings and thank Him for the unbroken succession of His favors. I bear witness that there is no god but God alone, who has no partner, and that Muḥammad is His servant and His messenger: possessor of pure character, of the dazzling miracle, of the overpowering proof, and of the drawn sword. May God's blessings and peace be upon him, upon his family and his companions, men of lofty aspirations, possessed of virtues and marks of distinction, and upon all the Companions and the Followers until the Day of Judgment; and may He grant them abundant peace.