Sahih al-Bukhari 1734
Book 25: Hajj (Pilgrimage) · Narrated by Ibn `Abbas
Arabic
حَدَّثَنَا مُوسَى بْنُ إِسْمَاعِيلَ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا ابْنُ طَاوُسٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ ـ رضى الله عنهما ـ أَنَّ النَّبِيَّ صلى الله عليه وسلم قِيلَ لَهُ فِي الذَّبْحِ وَالْحَلْقِ وَالرَّمْىِ وَالتَّقْدِيمِ وَالتَّأْخِيرِ فَقَالَ " لاَ حَرَجَ ".
English translation
Narrated Ibn `Abbas:The Prophet (ﷺ) was asked about the slaughtering, shaving (of the head), and the doing of Rami before or after the due times. He said, "There is no harm in that
Reference: Sahih al-Bukhari 1734, Book of Hajj (Pilgrimage). English translation by Dr. Muhammad Muhsin Khan.