What is the ruling on my colleague's statement that there is no proof from the Qur'an and Sunnah for the obligation of hijab, and for a woman to break her fast in Ramadan and abandon prayer during menstruation, and what is the extent of validity of what is stated in the book "Islam Against Islam" by Sadiq Al-Naihoum?

The hijab is an obligation upon women according to the text of the Qur’an, the Sunnah, and the consensus of the imams. There is a disagreement regarding the obligation of covering the face and hands. As for the obligation for a menstruating woman to break her fast in Ramadan and make up for the fasting days but not the prayers, this has been indicated by the Prophetic Sunnah and agreed upon by scholars. This is because prayers are numerous and repetitive, making their makeup difficult, unlike fasting. Islamic rulings must be derived from the Qur’an and Sunnah through the understanding of scholars, not from interpretations based on whims. Whoever deviates from the consensus of scholars has followed a path other than that of the believers. The questioner is advised to counsel her colleague and clarify the religious ruling to her with evidence.