I got (my head) shaved before sacrificing the, animal, whereupon be (the Holy Prophet) said: Sacrifice the animal (now) ; there is no harm in it. He (the person said): I sacripced the animal before throwingpebbles. whereupon he said: Throw pebbles (now) ; there is no harm in it. (Using translation from Muslim 1306f)
يَا رَسُولَ اللهِ ذَبَحْتُ قَبْلَ أَنْ أَرْمِيَ قَالَ ارْمِ وَلَا حَرَجَ قَالَ رَجُلٌ يَا رَسُولَ اللهِ حَلَقْتُ قَبْلَ أَنْ أَذْبَحَ قَالَ اذْبَحْ وَلَا حَرَجَ