Abdullah b. 'Amr b. al-'As said that Allah's Messenger (ﷺ) stopped during the Farewell Pilgrimage at Mina for people who had something to ask. A man came and said:
Messenger of Allah, being ignorant. I shaved before sacrificing, whereupon he (the Holy Prophet) said: Now sacrifice (the animal) and there is no harm (for you). Then another man came and he said: Messenger of Allah, being ignorant, I sacrificed before throwing the pebbles, whereupon he (the Holy Prophet) said: (Now) throw the pebbles, and there is no harm (for you). Allah's Messenger (ﷺ) was not asked about anything which had been done before or after (its proper time) but he said: Do it, and no harm is there (for you).

'Abdullah b. 'Amr b. al-'As (Allah be pleased with them) reported:
Allah's Messenger (ﷺ) stopped while riding his camel and the people began to ask him. One of the inquirers said: Messenger of Allah, I did not know that pebbles should be thrown before sacrificing the animal, and by mistake I sacrificed the animal before throwing pebbles, whereupon Allah's Messenger (ﷺ) said: (Now) throw pebbles and there is no harm in it. Then another (person) came saying: I did not know that the animal was to be sacrificed before shaving, but I got myself shaved before sacrificing the animal, whereupon he (the Holy Prophet) said: Sacrifice the animal (now) and there is no harm in it. He (the narrator) said: I did not hear that anything was asked on that day (shout a matter) which a person forgot and could not observe the sequence or anything like it either due to forgetfulness or ignorance, but Allah's Messenger (ﷺ) said (about that): Do it; there is no harm in it.

This hadith has been narrated on the authority of Zuhri.

Abdullah b. Amr b. al-'As (Allah be pleased with them) reported:
As Allah's Apostle. (ﷺ) was delivering sermon on the Day of Nahr, a man stood up before him and said: Messenger of Allah, I did not know that such and such (rite was to be performed) before such and such (rite). Then another man came and said: Messenger of Allah, I thought that such and such (rite) should precede such and such (rite), and then another man came and said: Messenger of Allah, I had thought that such and such was before such and such, and such and such (is the sequence) of the three (rites, viz. throwing of pebbles, sacrificing of animal and shaving of one's head). He said to all these three: Do now (if you have not observed the cequence) ; there is no harm in it.

This hadith has been narrated on the authority of Ibn Juraij with the same chain of transmitters. And the narration of Ibn Bakr is like one transmitted by 'Isa but with this (variation):
" There are not these words in it: To all these three rites (throwing of pebbles sacrificing of animal and shaving of one's head)." And so far as the narration of Yahya al-Umawi (the words are): I got (my head) shaved before I sacrificed the animal, and I sacrified the animal before throwing pebbles, and like that.

Adullah b. 'Amr (b. al-'As) (Allah be pleased with him) reported that a person came to Allah's Apostle (ﷺ) and said:
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.

This hadith has been narrated on the authority of Zuhri with the same chain of transmitters (and the words are):
I saw Allah's Messenger (ﷺ) on the back of the camel at Mina, and a person came to him," and the rest of the hadith Is like that transmitted by Ibn 'Uyaina.

'Abdullah b. 'Amr b. al-As (Allah be pleased with them) said:
As Allah's Messenger (may peace be'upon him) was standing near the jamra, a person came to him on the Day of Nahr and said: Messenger of Allah, I got (my head shaved) before throwing pebbles, whereupon he (the Holy Prophet) said: Throw pebbles (now) ; there is no harm in it. Another man (then) came and said: I have sacrificed before throwing the stones. He said: Throw stones (now) and there is no harm. Another came to him and said: I have observed the circumambulation of Ifada of the House before throwing pebbles. He said: Throw pebbles (now) ; there is no harm in it, He (the narrator) said: I did not see that he (the Holy Prophet) was asked about anything on that day, but he said: Do, and there is no harm in it.

Ibn Abbas (Allah be pleased with them) reported that it was said to Allah's Apostle (ﷺ) 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.