Arabic works without the harakāt — type البقرة or baqarah.
No surah matches that.
تفسير القرآن
Al-Samʿānī
Short and steady — the plain meaning and the reports behind it.
Say, "What thing is greatest in testimony?" Say, "Allah is witness between me and you. And this Qur'an was revealed to me that I may warn you thereby and whomever it reaches. Do you [truly] testify that with Allah there are other deities?" Say, "I will not testify [with you]." Say, "Indeed, He is but one God, and indeed, I am free of what you associate [with Him]."
The same ayah, in another commentary
Al-Anʿām 6:19