However...

However, there is nothing wrong in turning the face this way and that way while continuing to face the destination in the course of movement." He means that it is obligatory that the body should face Marwah while going and should be toward Safa while returning, and it is not permissible to make the approach with only a shoulder facing the direction of the destination‑‑as may happen due to overcrowding of the pilgrims; also, while moving, the face in particular should remain in the right direction.

Al‑Sayyid al‑Khu'i makes a similar statement in his work on the rites of Hajj; his words are: "It is wajib to face Marwah while going and to be towards Safa while returning. Thus if one turns his back towards Marwah while going and towards Safa while returning, it does not satisfy (lam yujzi', i.e. the conditions for a correct sa’y ). Also, one should not turn towards his right or left, neither should he turn back either during the going (dhahab) or during the return ( iyab ).

The Ahkam of Sa’y One who cannot perform the sa’y, either on foot or on a mount, may depute another to perform it on his/her behalf, and the Hajj would be correct. There is nothing wrong in looking to the right or the left or turning back to look during the coming and the going. If someone makes more than seven ashwat intentionally, his sa’y is invalid, but not if the lapse was unintentional.

If one were to have doubts about the number of the ashwat performed after finishing his sa’y, it is assumed to have been correct and nothing is required of him. The author of al‑Jawahir bases this hukm about the doubt after finishing on the principle of negation of haraj, as well as on tradition.

However, if the doubt were to occur before finishing the sa’y, the author of al‑Jawahir says that there is no difference of opinion about, nor any objection against, the invalidity of the sa`y in case of any doubt about the number of the ashwat performed, whether of having exceeded or fallen short of the required number. In both cases the sa’y at hand is invalid. If one suspects one's having begun from Safa, his sa’y is correct.

But if he thinks that he might have started from some other place, it is invalid. Also if one suspects the number of ashwat already performed, and does not know how many one has completed, one's sa`y is invalid.