When was Prayer (Namaz) made obligatory?

a) 5 Nabawi

b) 7 Nabawi

c) 8 Nabawi

d) 10 Nabawi 

The five prayers were made obligatory in 10 Nabawi during the event of “Isra” or “Miraj”. Prayer (Namaz) or Salah of five times daily, is the most important rituals of Islam. The five prayers are, Fajar, Zohar, Asar, Maghrib and Esha.