Is the Hadith "Whoever recites Ayatul Kursi after every prayer, nothing prevents him from entering Paradise except death" authentic, and is it permissible to act upon it?

The Hadith, which states: "Whoever recites Ayatul Kursi after every obligatory prayer, nothing will prevent him from entering Paradise except death," has a good chain of narration, and some scholars have deemed it Hasan (good). It also has supporting narrations (shawāhid) that strengthen its meaning, despite the weakness of some of them, indicating that the Hadith has an origin and is not fabricated.

The virtue of reciting Ayatul Kursi after every obligatory prayer is that whoever maintains it is hoped to enter Paradise, provided he remains steadfast in his religion and avoids major sins.