Performing Salah (Prayer) before the Adhan (call to Prayer) of Maghrib (Sunset) Prayer(Part No. 7; Page No. 274)?
Performing supererogatory Salah before sunset is not permissible, unless there is a specific reason as in the case of performing Tahiyyat-ul-Masjid (two-unit Prayer to salute the mosque). The Hadith narrated in Sahih Muslim reads,
There is no Salah after the `Asr (Afternoon) Prayer until the sun sets.
However, it is permissible to perform supererogatory Prayer after sunset and before the Adhan (Call to Prayer) of Maghrib (Sunset) Prayer.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.