Upon reciting or hearing any of the following verses of the holy Qur’an, the performance of Sajdah becomes obligatory:
- Surah as-Sajdah, 32:15
- Surah Ha Mim Sajdah, 41:38
- Surah an-Najm, 53:62
- Surah al-‘Alaq, 96:19
More details and special circumstances here
Wow that’s so interesting!
Actually, there are about 14 or 15 instances in the Qur’an when one should make Sajdata Tilawah, and here is a list of them, as well as the different opinions on Sajdata Tilawah by the schools of thought.