اللَّهُمَّ رَبَّ هَذِهِ الدَّعْوَةِ التَّامَّةِ، وَالصَّلَاةِ الْقَائِمَةِ، آتِ مُحَمَّدًا الْوَسِيلَةَ وَالْفَضِيلَةَ، وَابْعَثْهُ مَقَامًا مَحْمُودًا الَّذِي وَعَدْتَهُ
Purpose Ask Allah to grant the Prophet the praised station.
When to Use Read this after the adhan is completed.
Source Sahih al-Bukhari

Transliteration

Allahumma rabba hadhihid-da`watit-tammah, wassalatil-qa`imah, ati Muhammadanil-wasilata wal-fadilah, wab`athhu maqaman mahmudan alladhi wa`adtah.

Meaning

O Allah, Lord of this perfect call and established prayer, grant Muhammad the Wasilah and virtue, and raise him to the praised station You promised him.