The gender of the Torah

I keep finding references to the Torah being referred to in the feminine. There is the Rambam stating Great is peace, as the whole Torah was given in order to promote peace in the world, as it is stated, ‘Her ways are pleasant ways and all her paths are peace.” in the Mishneh Torah. I believe that some of the odder and wilder Jewish aggadah refers to the Torah as God’s daughter. My problem is that I can’t find any source besides several references for the Torah being a feminine. What, if any, basis is there to refer to the Torah in the feminine?