Abdullah bin Sarjis reported: A person entered the mosque, while the Messenger of Allah ﷺ was leading the dawn prayer. He observed two rakahs in a corner of the mosque, and then joined the Messenger of Allah ﷺ in prayer. When the Messenger of Allah ﷺ had pronounced salutations (he had concluded the prayer), he said: O, so and so, which one out of these two prayers did you count (as your Fard prayer), the one that you observed alone or the prayer that you observed with us?