Praise be to Allaah Who has perfected our religion for
us, and has completed His Favour upon us. And blessings and peace be upon His
Prophet and Messenger Muhammad, the Prophet of repentance and mercy.
Allaah says (interpretation of the meanings):
“This day, I have perfected your religion for
you, completed My Favour upon you, and have chosen for you Islam as your
religion [al-Maa’idah 5:3]
“Or have they partners
with Allaah (false gods) who have instituted for them a religion which Allaah
has not ordained? [al-Shooraa
42:21]
In al-Saheehayn it is reported from ‘Aa’ishah (may
Allaah be pleased with her) that the Prophet (peace
and blessings of Allaah be upon him) said:
“Whoever innovates something in this matter of ours
[Islam] that is not part of it, will have it rejected.”
In Saheeh
Muslim it is narrated from
Jaabir (may Allaah be pleased with him) that the Prophet (peace and blessings of Allaah be upon
him) used to say in his Friday khutbahs: “The best of speech is the Book of
Allaah and the best of guidance is the guidance of Muhammad (peace and blessings of Allaah be upon
him). The most evil of things are those which are newly-invented, and every
innovation (bid’ah) is a going-astray.”