Naqshbandi.org states read Surah Sajda after Maghrib whereas I have seen Surah Mulk read in practice.
This site has many issues which cannot be listed here. I would like to work with someone to resolve these for the benefit of everyone Insha Allah.
In the practice of our mashaykh Surat as-Sajda is read after Maghrib, Surat al-Mulk after Salat azh-Zhuhr and Salat al-`Isha and Allah knows best.
You may email [email protected] to recommend additional corrections, may Allah reward you for your assistance.