Chapter on the Adhan and the Iqamah
Tahdhīb al-Aḥkām|Volume 2|Book 1|Chapter 14
أَحْمَدُ بْنُ مُحَمَّدٍ عَنْ حَمَّادٍ عَنْ حَرِيزٍ عَنْ زُرَارَةَ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ:« مَنْ سَهَا فِي اَلْأَذَانِ فَقَدَّمَ أَوْ أَخَّرَ أَعَادَ عَلَى اَلْأَوَّلِ اَلَّذِي أَخَّرَهُ حَتَّى يَمْضِيَ عَلَى آخِرِهِ»
Ahmad ibn Muhammad from Hammad from Hariz from Zurarah:
Abu Abdillah عليه السلام, peace be upon him, said: "Whoever makes a mistake in the Adhan and advances or delays (a part of it), he must return to the first part which he delayed and then proceed to the end of it."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 302
- Ṣaḥīḥ al-Tahdhīb, p. 175