Abū ʿUbaydah ibn al-Muthannā relates that in this same year Hurm ibn Ḥayyān besieged the people of Dast Hurr. Their king witnessed a woman devouring her own child out of hunger and exclaimed, “Now I shall make peace with the Arabs.” He therefore concluded a treaty with Hurm, handing the city over to them.

That year the people took up residence in Kūfah. Saʿd rebuilt it with sun-dried brick, for it had first been erected with reeds, and a great fire had broken out there.

During the year the plague of ʿAmwās struck the Jordan district, and many Muslims were martyred. It is said that neither Mecca nor Medina has ever been touched by plague.

In the same year Abū Mūsā al-Ashʿarī captured Edessa and Samosata by storm.

At the beginning of the year Abū ʿUbaydah ibn al-Jarrāḥ dispatched ʿIyāḍ ibn Ghanm al-Fihrī to al-Jazīrah, where he met Abū Mūsā returning from Basra. Together they seized Ḥarrān, Nisibis, and a number of other towns in al-Jazīrah by assault—though some say by treaty.

Also that year ʿIyāḍ ibn Ghanm marched on Mosul and took the city and its environs by force.

In this same year Saʿd built the congregational mosque of Kūfah.

Year Nineteen (19 AH):

Khalīfah records that in this year Caesarea was conquered; the army was led by Muʿāwiyah ibn Abī Sufyān and Saʿd ibn ʿĀmir ibn Ḥudhaym, each commanding his own contingent. Allah routed the polytheists, who suffered severe losses, and Ibn al-Kalbī dates the event accordingly.