As for those who attained to faith and did righteous works and believed in what was revealed to Muhammad - which indeed is the Truth from their Lord - Allah has remitted their evil deeds and has set their condition right.   (Quran 47:2)

Accepting and Following Islam

Accepting Islam
1. Islam: Meaning and Concept [pg.8] (Ref: Al-Islam.com)
Following Islam
1. Let us be Muslim [pg.133] (Ref: Al-Islamforall.org)
2. Islam at a Glance [pg.185] (Ref: Jamaateislamihind.org)