بسم الله الرحمان الحيم
السلام عليكم و رحمة الله و بركاته
الحمد الله
On the authority of Abu 'AbduLlah al-Nu'man bin Bashir رضي الله عنهماwho said: I heard the Messenger of Allah صلى الله عليه وسلم, say, "Truly, what is lawful is evident, and what is unlawful is evident, and in between the two are matters which are doubtful which many people do not know. He who guards against doubtful things keeps his religion and honour blameless, and he who indulges in doubtful things indulges in fact in unlawful things, just as a shepherd who pastures his flock round a preserve will soon pasture them in it. Beware, every king has a preserve, and the things Allah has declared unlawful are His preserves. Beware, in the body there is a flesh; if it is sound, the whole body is sound, and if it is corrupt, the whole body is corrupt, and behold, it is the heart."
[Sahihayn]
Thus Al-
Hafi
dh Ibn
Hajar Al-‘Asqalani رحمه الله once said, “The heart has been singled out for this because it is the leader of the body, and through the purification of the leader subjects become purified, and with his corruption they become corrupted. So if you, O servant of Allah, wish to cure your heart then it is upon you to be truthful with regards to seeking refuge with Allah and putting your trust in Him, to pray a great deal of supererogatory prayers, to perform actions of obedience to Allah frequently, to pray night prayer whilst people are sleeping, and to treat your heart by making it continuously stick to the remembrances and by befriending only the righteous… and to frequently recite the Qur`an. And Allah will indeed allow all of this to be preserved by Him.”
[Taken fromCompiler’s Foreword of ‘The Diseases of the Hearts and their Cures]