(88) باب فِيمَنْ قَدَّمَ شَيْئًا قَبْلَ شَىْءٍ فِي حَجِّهِ
'Abd Allaah bin 'Amr bin Al 'As said "The Apostle of Allaah(ﷺ) stopped during the Farewell Pilgrimage at Mina, as the people were to ask him(about the rites of Hajj). A man came and said Apostle of Allaah being ignorant, I shaved before sacrificing. The Apostle of Allaah(ﷺ) replied "Sacrifice, for no harm will come." Another man came and said "Apostle of Allaah(ﷺ), being ignorant, I sacrificed before throwing the pebbles." He replied "Throw them for no harm will come." He (the Prophet) was not asked about anything which had been done before or after its proper time without saying "Do it, for no harm will come."
Reference: Sunan Abi Dawud 2014
In-book reference: Book 11, Hadith 294
English translation: Book 10, Hadith 2009