"Qurratu Aini bika Ya Rasoolallah" (Ya Rasoolallah! You are the coolness of my eyes).


Once, the Holy Prophet (sallal laahu alaihi wasallam) entered the Masjid and sat down near a pillar. Hazrat Abu Bakr Siddique (radi Allahu anhu) was seated beside him. Hazrat Bilal (radi Allahu anhu) then stood up and commenced with the Azaan. When he said: "Ash hadu Ana Muhammadur Rasoolullah", Hazrat Abu Bakr Siddique (radi Allahu anhu) placed both the thumb nails on to his eyes and said "Qurratu Aini bika Ya Rasoolallah" (Ya Rasoolallah! You are the coolness of my eyes). When Hazrat Bilal (radi Allahu anhu) completed the Azaan, the Holy Prophet (sallal laahu alaihi wasallam) said, "O Abu Bakr! Whosoever does like you have done, Almighty Allah will forgive all his sins."


(Tafseer Roohul Bayaan)