When should Ayat al-Kursi, Al-Ikhlas, and Al-Mu'awwidhatayn be recited after prayer?

It is sunnah to recite Ayat al-Kursi, Surat al-Ikhlas, and the two Mu'awwidhatayn silently after completing the dhikr following each prescribed prayer. The evidence for this is the hadith: "Whoever recites Ayat al-Kursi after every prescribed prayer, nothing will prevent him from entering Paradise except death," and the hadith: "The Messenger of Allah, may Allah's prayers and peace be upon him, commanded me to recite the two Mu'awwidhatayn after every prayer."