Answer: Invoke blessings upon the Prophet (may Allah's peace and blessings be upon him. [Narrated by Muslim] Then, one should say: "Allāhumma rabba hādhihi ad-da‘watit tāmmah wasalātil qā’imah āti Muhammadan al-wasīlata wal fadīlah wab‘athuhu maqāman mahmūdan illadhī wa‘adtah" (O Allah, Lord of this perfect call and the prayer that is about to be established, grant Muhammad the right of intercession and favor and resurrect him to a praised position that You have promised him). [Narrated by Al-Bukhāri]

One should also supplicate to Allah between the Adhān and Iqāmah (the second call to prayer), as it is a time when the supplication is not rejected.