Reference: Fataawa al-Lajnah ad-Daa.imah lil-Buhooth al-‘Ilmiyyah wal-Iftaa. – Volume 11, Page 112, Question 2 of Fatwa No.9892
Question: If there occurred some argument/quarrel between a man and his companions during Hajj, is his Hajj correct/sound and will it be rewarded even if it was his obligatory [first] Hajj?
Response: His Hajj is correct/sound and will [in shaa.-Allaah] be rewarded as his obligatory [first Hajj], however, his reward will be reduced according to the severity of the ugly argument/quarrel which took place. So it is upon him to repent [to Allaah] for that, as Allaah (Subhaanahu wa Ta’aala) says:
{And all of you beg Allaah to forgive you all, O believers, that you may be successful}, [Soorah an-Noor, Aayah 31].
And with Allaah lies all success and may Allaah send prayers and salutations upon our Prophet ﷺ and his family and his companions.