From him, from Ahmad ibn al-Hasan, from Amr ibn Sa'id, from Musaddiq ibn Sadaqah, from Ammar al-Sabati, from Abu Abdillah عليه السلام, peace be upon him, who said: Imam al-Sadiq عليه السلام was asked about a man who gives the adhan and the iqamah to pray alone, then another man comes and says to him, ‘Let us pray in congregation.’ Is it permissible for them to pray with that same adhan and iqamah? Imam عليه السلام said: “No, rather he should give the adhan and the iqamah again.”