Why was it said that "angels are the daughters of God" and that they are females? And who were those who said that? And are angels male or female?

The saying that angels are the daughters of Allah is a grave blasphemy, and it is among the fabrications of the Arabs of the pre-Islamic era (Jahiliyyah). The Qur'an has decisively settled this issue and clarified its falsehood in many verses, among them His (Allah's) saying: {Indeed, those who do not believe in the Hereafter name the angels with the naming of the female. And they have thereof no knowledge.} Angels are a creation of Allah; they are not described with masculinity or femininity, they are predisposed to acts of obedience, immune from sins, and they were created from light.