Sahih Muslim , Hadith 1307 ⓘ
Ibn Abbas (Allah be pleased with them) reported that it was said to Allah's Apostle about sacrificing of animals, shaving of one's head, throwing of pebbles, and (the order of) precedence and succession, and he said: There is no harm in it.
حَدَّثَنِي مُحَمَّدُ بْنُ حَاتِمٍ، حَدَّثَنَا بَهْزٌ، حَدَّثَنَا وُهَيْبٌ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ طَاوُسٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ، أَنَّ النَّبِيَّ صلى الله عليه وسلم قِيلَ لَهُ فِي الذَّبْحِ وَالْحَلْقِ وَالرَّمْىِ وَالتَّقْدِيمِ وَالتَّأْخِيرِ فَقَالَ " لاَ حَرَجَ " .
also referenced under: Book 15, Hadith 368 (In-Book) & Book 7, Hadith 3003 (USC-MSA)