[1][2] In March 628 CE (6 AH), Muhammad set for Mecca to perform the ritual pilgrimage of Umrah.
Muhammad camped outside Mecca at Hudaybiyyah and sent Uthman ibn Affan as his envoy to meet with the leaders of Quraysh and negotiate their entry into the city.
The Quraysh caused Uthman to stay longer in Mecca than they originally planned and refused to inform the Muslims of his whereabouts.
The people who took the pledge, also known as the Companions of the Tree (اصحاب الشجرة aṣḥāb ash-shajarah) are held in high regard by Muslims in general and Sunnis in particular.
Rashid Rida explained that for every Companions of the Prophet who pledge during this pledge were regarded universally by Islam teaching as special[3] which such explanation in line with Ibn Hajar al-Asqalani explanation of the Hadith of Bukhari regarding special position of the pledge attendance as the revelation of Hadith Qudse regarding the God's will towards them.