Ayatul Kursi After Salaah

According to the report classified as authentic by a group of scholars and narrated by Al-Nasa’i, Al-Tabarani, Al-Dia’ Al-Maqdesi in his collection “Al-Ahadith Al-Mukhtarah” i.e. the Chosen Hadiths, and others, on the authority of Abu Umamah, may Allah be pleased with him, that the Messenger of Allah (peace be upon him) stated: 

"Whoever recites Ayatul-Kursi after every obligatory Salah will have nothing to prevent him from entering Paradise but his death!"