883. hadíth
وَقَالَ عَلَيْهِ اَلسَّلاَمُ: «مَنْ أَذَّنَ سَبْعَ سِنِينَ مُحْتَسِباً جَاءَ يَوْمَ اَلْقِيَامَةِ لاَ ذَنْبَ لَهُ.
Imam (a.s) said: "Whoever calls the adhan (call to prayer) for seven years with the intention of seeking Allah’s (swt) reward will come on the Day of Judgment without any sins."