Qur'anic Verse

Is wearing Hijab obligatory for Muslim women? If so, does it imply disobedience to Allah and potential punishment? What are the consequences? Could you provide some Hadith or Quran verses to clarify this matter? Sayyed Mohammad Al-Musawi	Is verse 3 of Surat al-Nur considered to be abrogated by verse 32 of the same chapter? Sayyed Mohammad Al-Musawi
What is the significance of Surah Baqarah verse 48 regarding intercession on the Day of Judgement and how does it relate to the concept of the Ahlulbayt (a) interceding for us? Sayyed Muhammad Husaini Ragheb	In arguments against authenticity of Prophet Muhammad (s) I find that Sahih Bukhari 4428 (Book 64, Hadith 450) is often cited and linked with Surah 69:44-47. How can we make sense of both the Qur'an verse and this particular Hadith from Sahih Bukhari? Sayyed Mohammad Al-Musawi