Prayer: Time for Morning Prayer (Subh)
Practical Laws of Islam as per the teachings of Ayatullah Sistani
Ruling 728
Near the time of the morning call to prayer, a whiteness in the sky moves upwards from the east; this is known as ‘the first dawn’. When this whiteness spreads, it is called ‘the second dawn’, which is the start of the prescribed time for the morning prayer.[1] The end of the time for the morning prayer is when the sun rises.
-Ayatullah Sistani, Practical Laws of Islam, Prayer (Salah)
1
‘The first dawn’ is also known as the ‘the false dawn’ (al-fajr al-kādhib), and ‘the second dawn’ is also known as ‘the true dawn’ (al-fajr al-ṣādiq).