Name
The Surah takes its name from the word nasr occurring in the first verse.

Period of Revelation
Hadrat Abdullah bin Abbas states that this is the last Surah of the Quran to be revealed, i. e. no complete Surah was sent down to the Holy Prophet after it. (Muslim Nasai, Tabarani, Ibn Abi Shaibah, Ibn Marduyah).

According to Hadrat Abdullah bin Umar, this Surah was sent down on the occasion of the Farewell Pilgrimage in the middle of the Tashriq Days at Mina, and after it the Holy Prophet rode his she camel and gave his well known Sermon. (Tirmidhi, Bazzar, Baihaqi, Ibn Abi Shaibah, Abd bin Humaid, Abn Yala, Ibn Marduyah). Baihaqi in Kitab al- Hajj has related from the tradition of Hadrat Sarra bint-Nabhan the Sermon which the Holy Prophet gave on this occasion. She says:

"At the Farewell Pilgrimage I heard the Holy Prophet say: O people, do you know what day it is? They said: Allah and His Messenger have the best knowledge. He said: This is the middle day of the Tashriq Days. Then he said: Do you know what place it is? They said: Allah and His Messenger have the best knowledge. He said: This is Masharil-Haram. Then he said: I do not know, I might not meet you here again. Beware, your bloods and your honors are forbidden, until you appear before your Lord, and He questions you about your deeds. Listen: let the one who is near convey it to him who is far away. Listen: have I conveyed the message to you? Then, when we returned to Madinah, the Holy Prophet passed away not many days after that."

If both these traditions are read together, it appears that there was an interval of three months and some days between the revelation of Surah An-Nasr and the Holy Prophet's death, for historically the same was the interval between the Farewell Pilgrimage and the passing away of the Holy Prophet.

Ibn Abbas says that when this Surah was revealed, the Holy Prophet said that he had been informed of his death and his time had approached. (Musnad Ahmad, Ibn Jarir, Ibn al-Mundhir, Ibn Marduyah). In the other traditions related from Hadrat Abdullah bin Abbas, it has been stated that at the revelation of this Surah the Holy Prophet understood that he had been informed of his departure from the world.(Musnad Ahmad, Ibn Jarir, Tabarani, Nasai, Ibn Abi Hatim, Ibn Marduyah).