The ruling on whoever leaves off stoning on the 12th Day and spending the Night in Mina on the 12th Night
Question :
I was with my husband while performing the obligation of Hajj for the second time. My children were in Ar- Riyadh. After we stoned the pillars the second time (i.e., on the 11th of Thul-Hijjah), we went to Makkah, completed our Hajj and traveled to Ar-Riyadh, as we were concerned with the condition of the children. We appointed one of our relatives to stone the pillars for us. Is this permissible and what is obligatory upon us?
Answer:
Both of you must make repentance to Allâh, because you left off the obligation of stoning on the 12th day, spending the night (in Mina) on the 12th night (i.e., the 11th of Thul-Hijjah), and making the Farewell Tawaf in its time. This is because the time of the Farewell Tawaf is after finishing the stoning. Each of you must slaughter two animals that are suitable for sacrifice. They are to be slaughtered in Makkah and distributed among the poor people of the Haram. This is for leaving off the stoning on the 12th day and for leaving off performing the Farewell Tawaf, because it is obligatory and you all made it before its time. You all must also give charity with whatever Allâh makes easy for you for leaving off spending the 12th night (i.e., the night of the 11th of Thul-Hijjah). May Allâh pardon you and us.
Source:
Ash-Shaykh Ibn Baz
Fatawa Islamiyah, Vol. 4 Pages 256-257