The lover never forgets the name of the beloved. If a lover puts on airs of trying to forget the name of his beloved, he will never manage to do it. He is also unable to stop mentioning him with his tongue. How can a lover forget his beloved while his name is inscribed on the heart!
Whenever the polytheists tortured Bilāl [may God have mercy upon him] in order to renounce monotheism, he kept on saying “He is the Only One.” If they said to him “say al-Lāt and al-‘Uzzā”, he would say, “I can not.”
As long as the worshipper’s knowledge of God is strong, he will keep on remembering Him easily. The dwellers of Paradise will say Tasbīḥ just as they take a breath. For them, “There is no god but God” [Lā ilāha illa Allāh] will be just like cool water for the people of this world.
When the lover hears the name of his beloved, he becomes happy and may get worried. The Prophet –God bless him and grant him peace– said to Ibn Mas‘ūd, “‘Recite [the Qur’ān] to me.’ Ibn Mas‘ūd said, ‘Will I recite it to you while it has been revealed to you?’ The Prophet –God bless him and grant him peace– said, ‘I like to hear it from others.’ When Ibn Mas‘ūd began to recite, the eyes of Prophet –God bless him and grant him peace– were overflowing with tears.” (Bukhārī)