سورة المعارج

Imam Sadiq (peace be upon him): Abu Sarah said: I asked Imam Sadiq (peace be upon him) about temporary marriage. He said: "It is lawful, but marry only a chaste and modest woman. Allah the Mighty and Majestic says: وَ الَّذِینَ هُمْ لِفُرُوجِهِمْ حَافِظُونَ [And those who guard their private parts]. Do not place your private part where you would not trust your dirham to be safe."

Imam Ali (peace be upon him): Sakuni narrates from Imam Sadiq (peace be upon him), from his forefathers, that Imam Ali (peace be upon him) said: ... A woman becomes lawful by three means: permanent marriage, temporary marriage (mut'ah), and ownership of the right hand (concubinage).

Imam Sadiq (peace be upon him): [Allah] has made it obligatory upon the eye that it not look at what He has forbidden it to see, and that it turn away from what He has prohibited and what is not lawful for it; this is the deed of the eye and its faith. He Himself has said: "Say to the believing men that they lower their gaze [from looking at non-mahrams] and guard their chastity" (Nur/30). In this way He forbade the believers from looking at each other's private parts — a person must not look at the private part of his brother, and he must keep his own private part covered so that no one looks at it. And [again] He said: "And say to the believing women that they lower their gaze [from lustful looks] and guard their private parts" (Nur/31), and a woman must not look at the hidden part of her sister, and must keep it covered so that no one else's gaze falls upon it. Here Imam Sadiq (peace be upon him) added: "Everything in the Qur'an about guarding the private part (farj) refers to guarding it from zina (fornication), except in this verse, where what is meant is [guarding it from] being looked at."