It is narrated from Sayyiduna Asim bin Adi (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) granted concession to the shepherds that they may perform the stoning (Rami) on one day and not on the other day.
Hadith Referenceصحيح ابن خزيمه / جماع أبواب ذكر أفعال اختلف الناس فى إباحته للمحرم، نصت سنة النبى صلى الله عليه وسلم أو دلت على إباحتها / 2976
It is narrated from Sayyiduna Asim bin Adi (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) permitted the shepherds to throw (the pebbles of two days together) in one day and leave it on the other day, and to graze their camels.
Hadith Referenceصحيح ابن خزيمه / جماع أبواب ذكر أفعال اختلف الناس فى إباحته للمحرم، نصت سنة النبى صلى الله عليه وسلم أو دلت على إباحتها / 2978