What to say upon hearing the Athan (call to prayer)

اللَّهُمَّ رَبَّ هَذِهِ الدَّعْوَةِ التَّامَّةِ، وَالصَّلاَةِ الْقَائِمَةِ، آتِ مُحَمَّداً الْوَسِيلَةَ وَالْفَضِيلَةَ، وَابْعَثْهُ مَقَامَاً مَحمُوداً الَّذِي وَعَدْتَهُ، إِنَّكَ لَا تُخْلِفُ الْمِيعَادَ

Allāhumma rabba hādhihi ad-daʿwati at-tāmmati, wa aṣ-ṣalāti l-qāʾimati, āti muḥammadan al-wasīlata wa-l-faḍīlata, wa ibʿathhu maqāmā maḥmūdan alladhī wa ʿadtahu, innaka lā tukhlifu l-mīʿād

‘O Allah, Owner of this perfect call and Owner of this prayer to be performed, bestow upon Muhammad al-waseelah and al-fadeelah and send him upon a praised platform which You have promised him. Verily, You never fail in Your promise.’