Revelational Circumstances of the Qur'an: Surah 11 (Hud)

Lo! now they fold up their breasts that they may hide (their thoughts) from Him. At the very moment when they cover themselves with their clothing, Allah knoweth that which they keep hidden and that which they proclaim. Lo! He is Aware of what is in the breasts (of men).

Narrated Muhammad bin Abbas bin Ja'far
Ibn Abbas recited. "No doubt! They fold up their breasts." I said, "O Abu Abbas! What is meant by "They fold up their breasts?" He said, "A man used to feel shy on having sexual relation with his wife or on answering the call of nature (in an open space) so this Verse was revealed:-- "No doubt! They fold up their breasts."

Establish worship at the two ends of the day and in some watches of the night. Lo! good deeds annul ill-deeds. This is reminder for the mindful.

'Abdullah b. Mas'ud reported that a person kissed a woman and he came to Allah's Apostle (may peace be upon him) and made a mention of that to him. It was (on this occasion) that this verse was revealed:" And observe prayer at the (two) ends of the day and in the first hours of the night. Surely, good deeds take away evil deeds. That is a reminder for the mindful" (xi. 114)*. That person said: Allah's Messenger, does it concern me only? He (the Holy Prophet) said: It concerns every one of my Unimah, who acts according to it.