The Heart Attaining Tranquility [Itminan-i Qalb]
On six occasions the Qur’an al kareem links together the roots of the words itminan and qalb. In particular, one aya that is frequently cited by Sufis is in surat al-Ra’d,
The emphasis in Tasawwuf on the practice of the remembrance of Allah is directly linked with the Qur’anic assertion that hearts become tranquil and find peace by means of remembering and meditating on Allah Almighty. A certain shaykh quoted in the Qur’anic commentaries of Sulami and Ruzbihan said;
Another shaykh quoted by both Sulami and Baqli stated;

