Allah is an Arabic word used to refer to God. The term is also used by Sikhs in the Sikh scriptures in reference to God. The word Allah (ਅਲਹ) is used 12 Times in the Guru Granth Sahib by Sheikh Farid. Guru Nanak, Guru Arjan and Saint Kabeer used the word 18 times.
While today the word Allah is best known in the West for its use by Muslims as a reference to God, it has long been used by Arabic-speakers of the other (earlier) Abrahamic faiths; Judism and Christianity, in reference to "God". The term was also used by pagan Arabs an Meccans as a reference to the creator-god, possibly the supreme deity in pre-Islamic Arabia.
La Ilaha Ill Allah Muhammadur Rasool Allah
(There is no god only Allah, Muhammad is the (last/seal) Rasool (Messenger) of Allah)
Is known as the Kalima Tayyab (the testification of faith in Islam). A person cannot be considered to be a Muslim if he/she does not believe in the words of this Kalima. To become a Muslim, a person must say this Kalima with total belief. Tayyab means Purity. Muslims believe that those who do not believe that Muhammad was the last Prophet of the one unique creator God Allah are Kufr or impure. They believe that by uttering this Kalima a person is purified from disbelief. This purification is spiritual.
This was the phrase that Guru Arjan, Guru Tegh Bahadur, Banda Singh Bahadur and the Chotta Sahibzade - Sahibzada Fateh Singh and Sahibzada Zorawar Singh (along with untold lakhs of Sikhs) refused to recite.
The above is Kalima Tayyab for who believe in Guru Nanak as it could be recited in Arabic, however the 'Kalma Tayyab' for sikhism is: Ik Onkar, Satnaam Shri Waheguru
While “Allah” may be used to mean “God” by Sikhs and the Arabic speaking Christians of Syria (the birth place of Christianity) and the rest of he Middle East, the Malaysian cabinet recently decided That the word “Allah” can only be used only by Muslims.“
Khuda is a Persian and Urdu word, often used in place of the word Allah, which also means god. In Pakistan, where Sikhi began, Muslims to show their independance from Iran and the Persian language, have begun to use the phrase Allah Hafez in place of the long used phrase Khuda Hafez.
The words Allah and Khuda in the SGGS
The word ਖਦਾਇ has been used 34 times, while the word ਖਦਾਈ has been used 8 times in the Guru Granth Sahib.
The word Allah is used by the following authors in the following lines:
Guru Nanak Dev
ਬਾਬਾ ਅਲਹ ਅਗਮ ਅਪਾਰ ॥
O Baba, the Lord Allah is Inaccessible and Infinite.
ਅਲਾਹ ਅਲਖ ਅਗੰਮ ਕਾਦਰ ਕਰਣਹਾਰ ਕਰੀਮ ॥
He is Allah, the Unknowable, the Inaccessible, All-powerful and Merciful Creator.
ਕਲਿ ਮਹਿ ਬੇਦ ਅਥਰਬਣ ਹੂਆ ਨਾਉ ਖਦਾਈ ਅਲਹ ਭਇਆ ॥
In the Dark Age of Kali Yuga, the Atharva Veda became prominent; Allah became the Name of God.
ਆਦਿ ਪਰਖ ਕਉ ਅਲਹ ਕਹੀਝ ਸੇਖਾਂ ਆਈ ਵਾਰੀ ॥
The Primal Lord God is called Allah. The Shaykh's turn has now come.
ਛੋਡਿ ਰਾਮ ਕੀ ਨ ਭਜਹਿ ਖਦਾਇ ॥੬॥
and she said, "Why don't you abandon your Lord Raam, and worship his Lord Allah?"||6||
ਭਿਜਉ ਸਿਜਉ ਕੰਬਲੀ ਅਲਹ ਵਰਸਉ ਮੇਹ ॥
My blanket is soaked, drenched with the downpour of the Lord's Rain. ਪੰਨਾ 1379, ਸਤਰ 4
Guru Arjun Dev
ਝਕੋ ਅਲਹ ਪਾਰਬਰਹਮ ॥੫॥੩੪॥੪੫॥
The Muslim God Allah and the Hindu God Paarbrahm are one and the same. ||5||34||45||
ਅਲਹ ਅਗਮ ਖਦਾਈ ਬੰਦੇ ॥
O slave of the inaccessible Lord God Allah,
ਹੂਰ ਨੂਰ ਮਸਕ ਖਦਾਇਆ ਬੰਦਗੀ ਅਲਹ ਆਲਾ ਹਜਰਾ ॥੫॥
God is the beauty, the light and the fragrance. Meditation on Allah is the secluded meditation chamber. ||5||
ਝਕ ਗਸਾਈ ਅਲਹ ਮੇਰਾ ॥
The One Lord, the Lord of the World, is my God Allah.
ਅਲਹ ਰਾਮ ਕੇ ਪਿੰਡ ਪਰਾਨ ॥੪॥
My body and breath of life belong to Allah - to Raam - the God of both. ||4||
ਰੋਜਾ ਧਰੈ ਮਨਾਵੈ ਅਲਹ ਸਆਦਤਿ ਜੀਅ ਸੰਘਾਰੈ ॥
You keep your fasts to please Allah, while you murder other beings for pleasure.
ਸਾਚ ਕਤੇਬ ਬਖਾਨੈ ਅਲਹ ਨਾਰਿ ਪਰਖ ਨਹੀ ਕੋਈ ॥
Your holy scriptures say that Allah is True, and that he is neither male nor female.
ਅਲਹ ਗੈਬ ਸਗਲ ਘਟ ਭੀਤਰਿ ਹਿਰਦੈ ਲੇਹ ਬਿਚਾਰੀ ॥
Allah is hidden in every heart; reflect upon this in your mind.
ਅਲਹ ਝਕ ਮਸੀਤਿ ਬਸਤ ਹੈ ਅਵਰ ਮਲਖ ਕਿਸ ਕੇਰਾ ॥
If the Lord Allah lives only in the mosque, then to whom does the rest of the world belong?
ਅਲਹ ਰਾਮ ਜੀਵਉ ਤੇਰੇ ਨਾਈ ॥
O Allah, O Raam, I live by Your Name.
ਕਬੀਰ ਪੂੰਗਰਾ ਰਾਮ ਅਲਹ ਕਾ ਸਭ ਗਰ ਪੀਰ ਹਮਾਰੇ ॥੫॥
Kabeer is the child of God, Allah, Raam. All the Gurus and prophets are mine. ||5||
ਅਵਲਿ ਅਲਹ ਨੂਰ ਉਪਾਇਆ ਕਦਰਤਿ ਕੇ ਸਭ ਬੰਦੇ ॥
First, Allah created the Light; then, by His Creative Power, He made all mortal beings.
ਅਲਹ ਅਲਖ ਨ ਜਾਈ ਲਖਿਆ ਗਰਿ ਗੜ ਦੀਨਾ ਮੀਠਾ ॥
The Lord Allah is Unseen; He cannot be seen. The Guru has blessed me with this sweet molasses.
ਕਬੀਰ ਅਲਹ ਕੀ ਕਰਿ ਬੰਦਗੀ ਜਿਹ ਸਿਮਰਤ ਦਖ ਜਾਇ ॥
Kabeer, worship the Lord Allah; meditating in remembrance on Him, troubles and pains depart.