Rule 376...
Rule 376: As a matter of caution, the pebbles must be hit upto the original height of the Jamrah and it is not sufficient to hit the extension and elevation recently made or the upper storey of the Jamrah recently constructed. If it is not possible to hit the on the original area only, then the pilgrim may personally hit the extended portion and appoint an agent to hit the original portion on his behalf.
In this regard, it is immaterial whether the action is from awareness, ignorance or by oversight. Rule 377: If a pilgrim forgets to hit the pebbles on the day of Idd or omits to do so out of the ignorance of the rule, he must correct the' error by the 13th of Dhi1 Hijjah whenever he remembers or learns of the rule. If he recalls or learns the rule at night, he must throw the pebbles the next day unless he qualifies in the category permitted to throw them at night.
If he recalls or learns after the 13th of Dhil Hijjah, as a matter of caution, he should retum to Mina and throw the pebbles and repeat the exercise in the following year personally or appoint an agent to do so on his behalf. If he recalls or learns the rule after departure from Makkah, there is no need to return to Mina but in the following year he must either throw the pebbles personally or appoint an agent to do so on his behalf.
Rule 378: If a pilgrim forgets to hit the pebbles on the day of Idd or omits to do so out of ignorance of the rule and recalls or learns the rule after having performed the tawaaf, it is not obligatory to correct the omission after the tawaaf, although, as a matter of caution, one should do so. However, if he knowingly and deliberately omits to throw the pebbles, then obviously his tawaaf is invalidated and it is obligatory on him to repeat the tawaaf after throwing the pebbles.
FIFTH OBLIGATION: Sacrifice of an animal at Mina: This is the fifth obligation in Hajj-ul-Tamatoo and it is necessary to form the intention of doing so to attain nearness to Allah. 'The sacrifice must be made during the day, unless one is afraid to do so in which case it may be made at night.
It is obligatory, as a matter of caution, that it be made after throwing the pebbles but if one does so before the throwing of pebbles because he forgot or did not know the rule, it is still valid and does not need to be repeated.