Taken from “The Proper Conduct of Marriage in Islam” (‘Adaab an-Nikaah), Book 12 of Imam Ghazalis “Ihya ‘Ulum ad-Din”, Translated by Muhtar Holland. Al-Baz Publishing, 1998, ISBN: 1-882216-14-8.
Al-Junaid used to say: “I need sexual intercourse just as I need food.” The wife is in fact nourishment and a means of keeping the heart pure. That is why Allah’s Messenger (Allah bless him and give him peace) commanded anyone who caught site of a woman, and desired her, to couple with his wife, since that would dispel the temptation from his soul. (Page 24)
It is likewise related of Ibn ‘Umar (may Allah be well pleased with him), who was one of the more ascetic and scholarly Companions, that he used to break his fast with sexual intercourse before eating. He would sometimes copulate before bathing and performing the sunset prayer. All this he did so as to leave his heart clear to worship Allah, and to dispose of Satan’s power to distract him. (Page 25)
After the death of Fatima (peace be upon her), her husband ‘Ali (may Allah be well pleased with him) remarried in seven days. (Page 26)