Hadith 335
335/م- قَالَ عَبْدُ اللَّهِ بْنُ الْحَارِثِ فَحَدَّثْتُ بِهِ ابْنَ عَبَّاسٍ فَقَالَ: إِنْ كُنْتُ لَأَمُرُّ عَلَي هَذِهِ الْآيَةِ ﴿ يُسَبِّحْنَ بِالْعَشِيِّ وَالْإِشْرَاقِ﴾ فَأَقُولُ: أَيُّ صَلَاةٍ صَلَاةُ الْإِشْرَاقِ فَهَذِهِ صَلَاةُ الْإِشْرَاقِ
Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: When I recite this verse: «يُسَبِّحْنَ بِالْعَشِيِّ وَالإِشْرَاقِ» (38-Sad:18) "Glorify [Him] in the evening and in the morning," I inquire as to which prayer is the Ishraq prayer, so this is the Ishraq prayer.