Another narrator said: Muʿāwiyah appointed ʿAmr, and ʿAlī appointed Abū Mūsā, on the condition that whoever the two of them confirmed as caliph would be the caliph, and whoever they jointly agreed to depose would be deposed. They fixed a meeting for the month of Ramadan, each to arrive with a party of leading Arabs. When the appointed time came, one contingent set out from Syria, the other from Iraq, until the two groups met at Dūmat al-Jandal, on the Syrian frontier toward the south-eastern corner.
ʿUmar ibn al-Ḥakam reported: Ibn ʿAbbās said to Abū Mūsā al-Ashʿarī, “Beware of ʿAmr. His plan is to push you forward and say, ‘You are a Companion of Allah’s Messenger and older than I, so speak first and I will speak after you.’ He only wants you to take the lead so that you will depose ʿAlī.”
The two of them then discussed the leadership. ʿAmr maneuvered around Abū Mūsā, mentioned Muʿāwiyah, but Abū Mūsā refused and said, “Rather, ʿAbd Allah ibn ʿUmar.” ʿAmr asked, “Tell me your own view.” Abū Mūsā replied, “My opinion is that we remove these two men from office and leave the matter to consultation among the Muslims so that they may choose for themselves whom they wish.” ʿAmr answered, “That is indeed the right view.”
They then approached the people, who had gathered at Dūmat al-Jandal. ʿAmr said, “Abū Mūsā, inform them that our minds are agreed.” He replied, “Yes. Our view has united on a matter by which we hope Allah will set the community’s affairs aright.”
ʿAmr said, “He has spoken truthfully and acted well—what an excellent guardian he is of Islam and its people. Speak, Abū Mūsā.”
Ibn ʿAbbās then came to Abū Mūsā privately and said, “You are being tricked. Did I not tell you: do not let him begin and have you follow? I fear he has given you an empty promise and will renounce it before the people.” Abū Mūsā replied, “Do not worry; we have agreed and reconciled.”
Abū Mūsā then stood, praised Allah, extolled Him, and said, “People, we have considered this affair and the condition of the ummah, and we have not found anything more beneficial for it, nor more effective in mending its rifts, than that we should not disturb the matter—nor any part of it—until that is done with the full consent