If a person was praying in congregation (behind an Imam) and the Imam prostrates himself , then the Sujud al-Tilawah becomes obligatory.
إذا كان الإنسان يصلى في جماعة خلف الإمام يكون سجود التلاوة واجبا إذا سجد الإمام
If a person was praying in congregation (behind an Imam) and the Imam prostrates himself , then the Sujud al-Tilawah becomes obligatory.