Al-Kāfi
Hadith 11277ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ حَمَّادِ بْنِ عِيسَى عَنْ حَرِيزٍ عَنْ زُرَارَةَ قَالَ قَالَ أَبُو جَعْفَرٍ (عَلَيْهِ الْسَّلام) إِذَا أَذَّنْتَ فَأَفْصِحْ بِالألِفِ وَالْهَاءِ وَصَلِّ عَلَى النَّبِيِّ كُلَّمَا ذَكَرْتَهُ أَوْ ذَكَرَهُ ذَاكِرٌ فِي أَذَانٍ وَغَيْرِهِ.
7. Ali ibn Ibrahim has narrated from his father from Hammad ibn ‘Isa from Hariz from Zurarah who has said the following: “Abu Ja‘far (a.s.), has said, ‘When you say Adhan say Alif and al-Ha’ (two letters of Arabic alphabet) clearly and say O Allah, grant compensation to Muhammad and his family worthy of their services to Your cause whenever you mention his name or someone else mentions his name in Adhan or in other expressions.’”