On hearing athan #1
Al-Bukhari 1:152
لَا حَوْلَ وَلَا قُوَّةَ إِلَّا بِاللهِ
There is no might and no power except by Allah.
On hearing athan
On hearing athan #2
Al-Bukhari 1:152
اللَّهُمَّ رَبَّ هَذِهِ الدَّعْوَةِ التَّامَّةِ، وَالصَّلَاةِ الْقَائِمَةِ، آتِ مُحَمَّداً الْوَسِيلَةَ وَالْفَضِيلَةَ، وَابْعَثْهُ مَقَاماً مَحْمُوداً الَّذِي وَعَدْتَهُ، إَنَّكَ لَا تُخْلِفُ الْمِيعَادَ.
O Allah, Lord of this perfect call and established prayer. Grant Muhammad the intercession and favor, and raise him to the honored station You have promised him, [verily You do not neglect promises].