It is narrated from Muhammad bin Ibrahim bin Harith Taimi, who reports from a man of his tribe Banu Taim, whose name is Mu'adh or Ibn Mu'adh, that the Prophet ﷺ, while settling people in their places at Mina, said: "Throw the pebbles like they are thrown with the finger."
Hadith Referenceمسند الإمام الشافعي / كتاب الحج / 1013
Hadith Takhrijحدیث صحیح أخرجہ ابوداود، المناسک، باب النزول بمنی (1951، 1957) والنسائی، الحج، باب ما ذکر فی منی (2999)۔