Arabic works without the harakāt — type البقرة or baqarah.
No surah matches that.
تفسير الجلالين
Al-Jalālayn
A brief gloss on each phrase — the shortest complete commentary, and the usual first one.
O you who have believed, be supporters of Allah, as when Jesus, the son of Mary, said to the disciples, "Who are my supporters for Allah?" The disciples said, "We are supporters of Allah." And a faction of the Children of Israel believed and a faction disbelieved. So We supported those who believed against their enemy, and they became dominant.
The same ayah, in another commentary
Aṣ-Ṣaff 61:14