Sunan Ibn Majah, Volume 4, Book 25, Hadith 3031 (DarusSalam) ⓘ
It was narrated from Sulaiman bin ‘Amr bin Ahwas that his mother said: “I saw the Prophet on the Day of Sacrifice, at ‘Aqabah Pillar. He went to the interior of the valley and threw seven pebbles, saying Takbir with each pebble, then he departed.”
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَلِيُّ بْنُ مُسْهِرٍ، عَنْ يَزِيدَ بْنِ أَبِي زِيَادٍ، عَنْ سُلَيْمَانَ بْنِ عَمْرِو بْنِ الأَحْوَصِ، عَنْ أُمِّهِ، قَالَتْ رَأَيْتُ النَّبِيَّ ـ صلى الله عليه وسلم ـ يَوْمَ النَّحْرِ عِنْدَ جَمْرَةِ الْعَقَبَةِ اسْتَبْطَنَ الْوَادِيَ فَرَمَى الْجَمْرَةَ بِسَبْعِ حَصَيَاتٍ يُكَبِّرُ مَعَ كُلِّ حَصَاةٍ ثُمَّ انْصَرَفَ .
also referenced under: Hadith 3031 (Reference) & Book 25, Hadith 3146 (In-Book)