1) Allaah the Most High says:
Those who believe and do not mix their belief with dhulm, they
are those upon whom is security and they are the rightly guided. [6:82]
From 'Abdullaah ibn Mas'ood, who said: When this verse was revealed, some
Muslims began to grieve, and said: 'Which of us does not do dhulm
(oppression) to his soul?' The Messenger of Allaah said: "It is not
that, verily it is shirk, have you not heard the saying of Luqmaan to his
son:
Oh my Son! Do not make shirk with Allaah. Verily, shirk is a great
dhulm. [31:13] [Bukhari &
Muslim]
This verse gives glad tidings to the believers, those who single out Allaah
alone for worship, those who do not mix their belief with shirk. Rather, they
are far from it, they have complete security from the punishment of Allaah in
the Hereafter and they are the rightly guided in this world.
2) The Prophet said: "Imaan consists of sixty something branches, the
highest of them is the saying 'Laa ilaaha illa Allaah; and the lowest of them is
to remove something harmful from the road." [Muslim]
3) Shaikh 'Abdullaah Khayaat mentions in his book entitled Daleel
ul-Muslim Fil I'tiqaad wat-Tat-heer. "Because of the human nature of
man and due to his lack of infallibility, his feet slip and he falls into
disobedience to Allaah. When he is from the people of tawheed, pure from the
blemishes of shirk, and he singles out Allaah alone for worship, and he is
sincere in saying 'Laa ilaaha illa Allaah' it becomes the greatest factor
for his happiness and an expiation for his sins and an elimination of his evil
deeds, as has come in the hadeeth of the Messenger of Allaah: " Whoever
testifies that none has the right to he worshipped except A llaah, alone without
any partners and that Muhammad is His slave and His messenger and that 'Eesaa is
a slave of Allaah, and a Word delivered to Maryam and a Spirit from Him, and
that Paradise is true and the Fire is true, Allaah will enter him into Paradise
in accordance to his deeds." [Bukhari & Muslim]
Verily, 'Laa ilaaha illa Allaah', the testification that the Muslim
testifies with, is the foundation necessary for his entrance into Paradise, the
place of comfort, even if some of his actions had defects and shortcomings. As
has come in the hadeeth Qudsee, Allaah, the Most High, says: "O Son of
Aadam, verily If you were to come to Me with the equivalent of the earth full
ofmistakes and then meet Me without associating partners with Me in anything
then Iwould give to you its equivalent amount of Mercy.) [Hasan - Tirmidhi &
ad-Diyaa]
Meaning: If one of you came to Me with an equivalent amount of the earth
full of sins and disobedience, but you died upon tawheed, then I would
forgive your sins.
It is reported from the Prophet that he said: "Whoever meets
Allaah without having associated with Him in anything will enter Paradise
and whosoever meets Him associating partners with him in anything will
enter the Fire. " [Muslim]
All these narrations clearly show the excellence of tawheed, for it is that
by which the happiness of the slave is achieved and the best means for the
expiation of his sins and the elimination of his
mistakes."
The Excellence of Tawhid