Jabir ibn Abdullah reported: The Messenger of Allah, peace and blessings be upon him, said, “Whoever hears the call to prayer and says, ‘O Allah, Lord of this perfect call and established prayer, give Muhammad the means of nearness and the most excellent reward, and raise him to the praiseworthy station that You have promised him,’ then my intercession will be allowed for him on the Day of Resurrection.”
Source: Ṣaḥīḥ al-Bukhārī 614
Grade: Sahih (authentic) according to Al-Bukhari
عَنْ جَابِرِ بْنِ عَبْدِ اللَّهِ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ مَنْ قَالَ حِينَ يَسْمَعُ النِّدَاءَ اللَّهُمَّ رَبَّ هَذِهِ الدَّعْوَةِ التَّامَّةِ وَالصَّلَاةِ الْقَائِمَةِ آتِ مُحَمَّدًا الْوَسِيلَةَ وَالْفَضِيلَةَ وَابْعَثْهُ مَقَامًا مَحْمُودًا الَّذِي وَعَدْتَهُ حَلَّتْ لَهُ شَفَاعَتِي يَوْمَ الْقِيَامَةِ
614 صحيح البخاري كتاب الأذان باب الدعاء عند النداء