Huzoor (rh): If you lose touch with what the Imam is saying or doing, it is advisable to wait for a while until you feel that that particular part of Namaaz, that is Rakat, must have been finished. Then you can continue your own prayer, but after giving it a pause of a reasonable time. For example, if you are in a Sajda, there is very difficult to decide. Sometimes the Imam intentionally goes for a longer Sajda, but then you know the situation and the general habit and everything, so you have to assess. But if it is sitting between the two Sajdas, obviously you can’t wait indefinitely. Within a short time you would realize that the contact has been broken, so you start saying your prayer. And when the contact is revived and you are in a position to judge which act the Imam is involved in at this moment, then you start following him from there on. And your Namaaz will be perfect. There will be no defect as far as the judgment of Allah is concerned in that Namaaz. Please.