NASAI-KUBRA 955:
from ʿAbd al-Jabbār b. Wāʾil from his father —
"I prayed behind the Messenger of Allah ﷺ and when he started to pray he said the Takbir and raised his hands until they were in level with his ears. Then he recited the Opening of the Book, and when he had finished he said 'Amin' and raised his voice with it." (Using translation from Nasāʾī 879)
الكبرى للنسائي ٩٥٥:
عن عبد الجبار بن واءل عن أبيه —
صَلَّيْتُ خَلْفَ رَسُولِ اللهِ ﷺ فَلَمَّا افْتَتَحَ الصَّلَاةَ كَبَّرَ وَرَفَعَ يَدَيْهِ حَتَّى حَاذَى بِأُذُنَيْهِ ثُمَّ قَرَأَ بِفَاتِحَةِ الْكِتَابِ فَلَمَّا فَرَغَ مِنْهَا قَالَ «آمِينَ» يَمُدُّ بِهَا صَوْتَهُ
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