It was commissioned by an army commander of Dhu Nuwas named S²rḥʾl Yqbl in which he celebrated massacring the Christian community of Najran and the burning of their church with the army in a move against the Abyssinian Christians of the Kingdom of Aksum based in Ethiopia.
The following translation follows that of the Corpus of South Arabian Inscriptions[1]:1 Might, the God, to whom belong the heavens and the earth, bless the king Yusuf ʾs¹ʾr Yṯʾr, the king of all the tribes, and might [God] bless the qayls [commanders] … 2 Lḥyʿt Yrḫm, S¹myfʿ ʾs²wʿ, S²rḥʾl Yqbl, S²rḥbʾl ʾs¹ʿd, the sons of S²rḥbʾl Ykml, of the clan of Yzʾn and Gdnm, 3 the supporters of their lord, the king Yusuf ʾs¹ʾr Yṯʾr, when he burnt the church, killed the Abyssinians in Ẓafār, and moved a war against ʾs²ʿrn, Rkbn, Fr– 4 s¹n, and Mḫwn, and brought the war (against) the defence of Nagrān.
What the king has managed 5 to get in this expedition as spoils, amounted to twelve thousand deaths, eleven thousand prisoners, two 6 hundred ninety thousand camels, cows and small animals.102 This inscription was written by the qayl S²rḥʾl Yqbl of Yzʾn, when he was in guard against Nagrān 7 with the tribe of Hamdān, citizens and nomads, and the assault troops of ʾzʾnn and the Arabs [ʾʿrb] of Kinda, Murād, Madhḥig, while the qayls, his brothers, with the king, were mounting guard 8 on the coast against the Abyssinians, while they were reinforcing the chain of Mandab.
That is all what they mentioned in this inscription: deaths, boot[y], garrison service and all (what happened) in only one expedition; 9 then they came back to their houses thirteen months later.
By the Highly Praised.Ja 1028 is the only surviving written source from within the Himyarite Kingdom to describe the massacre of the Christians of Najran.