It is narrated from Sayyiduna Uqbah bin Amir (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said about a Companion named Dhu al-Bijadayn: "He is one who sighs and beseeches much (awwah)." The reason was that he used to remember Allah abundantly through the Qur'an and supplication.
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 14885