Chapter on the Adhan and the Iqamah
Tahdhīb al-Aḥkām|Volume 2|Book 1|Chapter 14
عَنْهُ عَنْ مُحَمَّدِ بْنِ اَلْحُسَيْنِ عَنْ جَعْفَرِ بْنِ بَشِيرٍ عَنِ اَلْحَسَنِ بْنِ اَلسَّرِيِّ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ:« اَلسُّنَّةُ أَنْ تَضَعَ إِصْبَعَيْكَ فِي أُذُنَيْكَ فِي اَلْأَذَانِ»
From him, from Muhammad ibn Al-Husayn, from Ja'far ibn Bashir, from Al-Hasan ibn Al-Sarri:
Abu Abdillah عليه السلام, peace be upon him, said: "The Sunnah is to place your two fingers in your ears during the Adhan."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 307
- Ṣaḥīḥ al-Tahdhīb