ʿUyūn akhbār al-Riḍā
Hadith 313313 - وَبِإِسْنادِهِ عَن الحُسَيْنِ بْنِ عَلِىعَلَيْهِمَا السَّلاَمُقالَ: قالَ لي بُرَيدَةُ أمَرَنا رَسُولَ اللَّهِ أَن نُسَلِّمَ عَلَى أَبِيكَ بِأَمرَة المُؤْمِنِينَ.
31-313 According to the same documentation, on the authority of Al-Husayn ibn Ali (a.s.), “Burayda told me that God’s Prophet (S) ordered that they (the people) call my father the Commander of the Faithful (a.s.).”