Islamic Quotations: Whoever surrenders his heart to Allah…
Believers are those who are aware that God is watching them. Such servants restrain their desires and prepare themselves for the Hereafter. The hijr, an obligation that lasts until Doomsday, is the road that leads from ignorance to knowledge, from forgetting Allah to seeking Him, from sin to obedience, and from obduracy to repentance.
Sahl ibn Abdi’llah at-Tustari
Whoever surrenders his heart to Allah alone and concentrates on this, bright sparks of wisdom will rise from his heart and pour from his tongue.
Yahya ibn Muadh