171. hadíth
وَ سُئِلَ اَلصَّادِقُ عَلَيْهِ اَلسَّلاَمُ: عَنِ « اَلْخَيْطُ اَلْأَبْيَضُ مِنَ اَلْخَيْطِ اَلْأَسْوَدِ مِنَ اَلْفَجْرِ » فَقَالَ «بَيَاضُ اَلنَّهَارِ مِنْ سَوَادِ اَللَّيْلِ ».
Imam Jafar ibn Muhammad Al-Sadiq (a.s) was asked about the verse: "The white thread becomes distinct from the black thread of dawn" (Surah Al-Baqarah 2:187). Imam (a.s) said: "It is the whiteness of the day separating from the darkness of the night."