Surah An-Nasr refers to Allah's (عَزَّ وَجَلَّ) help in the victory of Muslims. During 23 years of preaching of Islam, the first 13 years in Makka, the Prophet (صلى الله عليه و آله وسلم) faced extreme persecution in the hands of Makkan Pagans. After his immigration to Madina, the Prophet (صلى الله عليه و آله وسلم) had to deal with the machinations of Jews, disbelieving tribes, hypocrites' plots and Makkan attacks. Many battles were fought by Muslims during this period and gradually with the help of Allah (عَزَّ وَجَلَّ), all resistance to Islam was overpowered and people joined the fold of Islam in crowds. And, when the Prophet (صلى الله عليه و آله وسلم) did Hajj in 10 AH (March, 632 AD), over 1,20,000 Muslims accompanied him.