Dalil

Quran Maryam 19:20

قَالَتۡ أَنَّىٰ يَكُونُ لِي غُلَٰمٞ وَلَمۡ يَمۡسَسۡنِي بَشَرٞ وَلَمۡ أَكُ بَغِيّٗا

Translation

She said, "How can I have a boy while no man has touched me and I have not been unchaste?"