Sayyiduna Abd al-Rahman bin Uthman al-Taymi (may Allah be pleased with him) states: The Messenger of Allah (peace and blessings be upon him) commanded us to stone the Jamarat with pebbles small enough to be held between the fingers. This was during the Farewell Hajj.
Al-Tabarani recorded it in al-Mu'jam al-Kabir, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الحج / 5580