Answer: - Two Rak‘ahs before Fajr

- Four Rak‘ahs before Zhuhr

- Two Rak‘ahs after Zhuhr

- Two Rak‘ahs after Maghrib

- Two Rak‘ahs after ‘Ishā’

Regarding their merit, the Prophet (may Allah’s peace and blessings be upon him) said: "Allah builds a house in Paradise for whoever prays twelve voluntary Rak‘ahs in one day and night." [Narrated by Muslim, Ahmad, and others]