890 - وَقَالَ اَلصَّادِقُ عَلَيْهِ اَلسَّلاَمُ: «مَنْ قَالَ حِينَ يَسْمَعُ أَذَانَ اَلصُّبْحِ - اَللَّهُمَّ إِنِّي أَسْأَلُكَ بِإِقْبَالِ نَهَارِكَ وَ إِدْبَارِ لَيْلِكَ وَ حُضُورِ صَلَوَاتِكَ وَ أَصْوَاتِ دُعَاتِكَ أَنْ تَتُوبَ عَلَيَّ «إِنَّكَ أَنْتَ اَلتَّوّٰابُ اَلرَّحِيمُ» وَقَالَ مِثْلَ ذَلِكَ حِينَ يَسْمَعُ أَذَانَ اَلْمَغْرِبِ ثُمَّ مَاتَ مِنْ يَوْمِهِ أَوْ لَيْلَتِهِ مَاتَ تَائِباً وَ كَانَ اِبْنُ اَلنَّبَّاحِ يَقُولُ فِي أَذَانِهِ - حَيَّ عَلَى خَيْرِ اَلْعَمَلِ حَيَّ عَلَى خَيْرِ اَلْعَمَلِ فَإِذَا رَآهُ عَلِيٌّ عَلَيْهِ اَلسَّلاَمُ قَالَ «مَرْحَباً بِالْقَائِلِينَ عَدْلاً وَ بِالصَّلاَةِ مَرْحَباً وَ أَهْلاً».
Hadith.890 - Imam Jafar ibn Muhammad Al-Sadiq 
said:
"Whoever, upon hearing the adhan for Fajr (morning prayer), says:
'O’ Allah (swt), I ask You by the coming of Your day and the departure of Your night, and by the presence of Your prayers and the voices of Your callers, that You accept my repentance. Indeed, You are the Most Accepting of Repentance, the Most Merciful,' and then says a similar supplication upon hearing the adhan for Maghrib (evening prayer), and dies during that day or night, dies in a state of repentance."
He also mentioned that Ibn al-Nabbah used to say during his adhan, "Hayya 'ala khayr al-'Amal (Hasten to the best of deeds), hasten to the best of deeds," and whenever Imam Ali would see him, he would say, "Welcome, O’ caller of justice, and welcome to prayer."
