word by word translation: http://corpus.quran.com/wordbyword.jsp?chapter=110&verse=1
English Interpretation of the Meaning:
1. When the Help of Allah and the Victory comes,
2. and you see the people entering the religion of Allah in crowds/troops,
3. then glorify with the Praise of your Lord and ask forgiveness of Him. Indeed, He is oft-forgiving.
Notes from the Tafsir:
The meaning of this surah is like the meaning of 1/4 of the Qur'an subhanAllah. It is very short but there is much wisdom inside it. This is said to be the last complete surah revealed to the Prophet Muhammad (salAllahu 3alaihi wa sallam) before his death.
In this surah, Allah was informing the prophet (salAllahu 3alaihi wa sallam) of his impending death. When this was revealed, he knew that his time was near. Indeed, he died within the year.
Verse 1~ the Victory (al-FatH): this is the final victory of the Muslims in Makkah. FatH means also opening, and this victory was an opening of the city. This was to be a sign that the end of the life of the prophet was near.
Verse 2~ entering in multitudes: another sign, many tribes and cities in the peninsula were waiting to see if the Muslims would be able to take Makkah. If they were able to take the city the they would know that Muhammad was a true prophet of God. When this happened, Arabs entered the religion of Islam in large groups, rushing to make their pledge to the Prophet of Allah.
Verse 3~ instruction upon seeing the signs of the end of his life, A'isha said she would hear her husband glorifying Allah and asking forgiveness even more often toward the end of his days.