It is difficult to be called a Muslim; if one is truly a Muslim, then he may be called one.
First, let him savor the religion of the Prophet as sweet; then, let his pride of his possessions be scraped away.
Becoming a true Muslim, a disciple of the faith of Mohammed, let him put aside the delusion of death and life.
As he submits to God’s Will, and surrenders to the Creator, he is rid of selfishness and conceit.
And when, O Nanak, he is merciful to all beings, only then shall he be called a Muslim.
Allah is hidden in every heart; reflect upon this in your mind. The One Lord is within both Hindu and Muslim; Kabir proclaims this out loud.
Be kind and compassionate to me, O Creator Lord. Bless me with devotion and meditation, O Lord Creator. Says Nanak, the Guru has rid me of doubt.
The Muslim God Allah and the Hindu God Paarbrahm are one and the same.

To be Muslim is to be kind-hearted, and wash away pollution from within the heart. He does not even approach worldly pleasures; he is pure, like flowers, silk, ghee and the deer-skin.
One who is blessed with the mercy and compassion of the Merciful Lord, is the manliest man among men. He alone is a Shaykh, a preacher, a Haji, and he alone is God’s slave, who is blessed with God’s Grace.
The Creator Lord has Creative Power; the Merciful Lord has Mercy. The Praises and the Love of the Merciful Lord are unfathomable.
Realize the True Hukam, the Command of the Lord, O Nanak; you shall be released from bondage, and carried across.

Sri Guru Granth Sahib

SHALOK, FIRST MEHL