Sahih al-Bukhari 4683
Sahih al-Bukhari · Book 65: Prophetic Commentary on the Qur'an (Tafseer of the Prophet (pbuh)) · "No doubt! They did fold up their breasts, that they may hide from Him. Surely, even when they cover themselves with their garments, He knows what they conceal and what they reveal. Verily, He is the All-Knower of the (innermost secrets) of the breasts." (V.11:5)
Narrated `Amr:
حَدَّثَنَا الْحُمَيْدِيُّ ، حَدَّثَنَا سُفْيَانُ ، حَدَّثَنَا عَمْرٌو ، قَالَ قَرَأَ ابْنُ عَبَّاسٍ {أَلاَ إِنَّهُمْ يَثْنُونَ صُدُورَهُمْ لِيَسْتَخْفُوا مِنْهُ أَلاَ حِينَ يَسْتَغْشُونَ ثِيَابَهُمْ} وَقَالَ غَيْرُهُ عَنِ ابْنِ عَبَّاسٍ {يَسْتَغْشُونَ} يُغَطُّونَ رُءُوسَهُمْ {سِيءَ بِهِمْ} سَاءَ ظَنُّهُ بِقَوْمِهِ. {وَضَاقَ بِهِمْ} بِأَضْيَافِهِ {بِقِطْعٍ مِنَ اللَّيْلِ} بِسَوَادٍ. وَقَالَ مُجَاهِدٌ {أُنِيبُ} أَرْجِعُ.
Ibn `Abbas recited:-- "No doubt! They fold up their breasts in order to hide from Him. Surely! Even when they cover themselves with their garments.." (11.5)