BAYHAQI 2387:
from Ibn —
[Machine] In His saying {And We have certainly given you, [O Muhammad], seven of the often repeated [verses].} [Al-Hijr 15:87], the opener of the Book (Surah Al-Fatiha) was asked about the seventh verse, Ibn Abbas said, "{In the name of Allah, the Most Gracious, the Most Merciful.}" [Al-Fatiha 1]. And this has been narrated from Ali.
البيهقي ٢٣٨٧:
عن ابن —
فِي قَوْلِهِ {وَلَقَدْ آتَيْنَاكَ سَبْعًا مِنَ الْمَثَانِي} [الحجر 87] قَالَ فَاتِحَةُ الْكِتَابِ قِيلَ لِابْنِ عَبَّاسٍ فَأَيْنَ السَّابِعَةُ؟ قَالَ {بِسْمِ اللهِ الرَّحْمَنِ الرَّحِيمِ} [الفاتحة 1] وَرُوِيَ ذَلِكَ عَنْ عَلِيٍّ ؓ
hadithunlocked.com