At which occasion Salat became obligation (Farz)?

At which occasion Salat became obligation (Farz)?

نماز کس موقع پر فرض ہوئی؟
Explanation

Five prayers were declared compulsory in the 10th Nabvi.

Namaz commanded in Quran 700 times.

Salat was made compulsory at the event of 27 Rajab ( Miraj )

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Salat Juma became Farz in Madina.

Hajj was made compulsory in the 09th Hijri.

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