Fard:
Fajr 2
Thuhur 4
Asr 4
Maghrib 3
Isha 4.

Sunnah:
They are 12 in number.
2 before Fajr, which the Prophet salla Allahu alaihi wa sallam had never left even when he was travelling.
2+2 before Thuhur and 2 after Thuhur.
2 after Maghrib
2 after Isha.

Witr : 1 or 3 or 5…..

can u tell me that when did the prophet alai hi salam prayed the Sunnah prayer.did he prayed after or before every prayer for example: 4 rakah before the Zohar prayer and 4 before asr and 2 after magrid and 4 before isha.plz explain it as here in India everyone one is doing this.