[And,] verily, those who have attained to faith, and do righteous deeds - it is they, they who are the best of all creatures.
Al-Baiyinah (The Clear Evidence) Verse 7
I heard Allah's Apostle saying, "The rights of a Muslim on the Muslims are to follow the funeral processions, to accept invitation and to reply the sneezer
Sahih Bukhari: Volume 2, Book 23, Number 332