What do we learn from the hadith narrated by Yahya (saw) about the first Surah of the Qur'an?
 Narrated Yahya:                     I asked Aba Salama, "Which Sura of the Qur'an was revealed first?" He replied, "O you, wrapped-up' (Al-Muddaththir)." I said, "I have been informed that it was, 'Read, in the Name of your Lord who created........ (i.e. Surat Al-Alaq).