Fiqh-us-Sunnah Volume 5, Hajj and ‘Umrah, Fiqh 5.107.

Al-Aswad said: “I saw ‘Umar throwing his pebbles at the Jamarah AlAqabah from a place above it.” ‘Ata was asked about throwing pebbles from above to which he replied, “There is no harm in it.” This is reported by Sa’id ibn Mansur.