Hazrat Abu Haroon says that once I performed prayer in Madinah Munawwarah, and I missed a part of the congregational prayer. When the Imam finished the prayer with salam, I stood up to complete the remaining part of my prayer. Meanwhile, a man standing next to me pulled me forcefully and said that you should not stand up until the Imam turns his face. I mentioned this incident to Hazrat Abu Saeed, and he did not consider my action to be objectionable at all.