The Prophet (may Allah's peace and blessings be upon him) used to say between the two prostrations: "Rabbi ighfir li, rabbi ighfir li" (My Lord, forgive me; my Lord, forgive me)

Explanation

When the Prophet (may Allah's peace and blessings be upon him) sat between the two prostrations, he would say: My Lord, forgive me; my Lord, forgive me, repeatedly. "My Lord, forgive me" means: The servant asks his Lord to eliminate his sins and conceal his faults.

Lessons

• It is prescribed to say this supplication between the two prostrations in obligatory and supererogatory prayers.
• It is recommended to repeat the phrase: "My Lord, forgive me." The obligation is one time.